GCSE OCR Physics A Papers 1 and 3 Automarked

#1. Conventional current goes from:

Negative terminal to positive terminal

Positive terminal to negative terminal

#2. If a car experiences a resultant force in the forwards direction, what will happen to the motion of the car?

It will decelerate forwards

It will move backwards at constant speed

It will accelerate forwards

#3. A bar magnet is a permanent magnet – what does that mean?

it is a very strong magnet

it is only temporarily magnetic

it is always magnetic

it is a magnet most of the time

#4. With electromagnetism the direction of the current depends on which of the following?

The resistance of the wire x the current

The direction of the current

The strength of the current

#5. Why would a wire carrying a current experience a force near a magnetic field?

The current in the wire creates a magnetic field - this interacts with the other magnetic field, making magnetic forces

The copper in the wire is magnetic and naturally experiences magnetic forces in the presence of a magnetic field

#6. What is the function of an ammeter?

gives power to a circuit

measures current

measures potential difference

#7. Using the equation F = MA – calculate the force of a ball with a mass of 15kg that is accelerated at 2m/s²?

30 Newtons

3 Newtons

10 Newtons

360 Newtons

#8. In an equilibrium situation – the forces between two objects are?

unequal

diverging

converging

equal

#9. What is Newton’s First Law of Motion?

F = MA

every action has an equal and opposite reaction

objects in motion stay in motion and objects at rest stay at rest (unless acted upon by a resultant force)

#10. True or False – Magnetic field lines that are far apart represent the strongest part of the field?

true

false

#11. A coil of wire with current flowing through it is an electromagnet. What else do we call a coil of wire?

A theodolite

A solenoid

A caliper

#12. Calculate the acceleration of an object which has the following characteristics. Use the following equation v² − u² = 2 a x. Final velocity = 50m/s, Initial velocity 0m/s, Distance travelled = 350m

3.57 m/s²

25 m/s²

2.65 m/s²

1250 m/s²

Rearrange the equation to the following and then substitute in the correct values:

a = v² – u²

2 x

Where:

a = acceleration

v² = final velocity squared

u² = initial velocity squared

x = distance

#13. What is this component?

#14. Complete the equation for weight. W = m x ……..

Time

Speed

Gravitational field strength

Momentum

#15. Complete the sentence. Power is the rate at which…..

Energy is destroyed

Energy is transferred

Energy is created

#16. In a parallel circuit, is the potential difference across each branch –

Equal

Different

#17. An object with a mass of 5kg is 100m above the ground and has 35 J of gravitational potential energy. What will happen to the gravitational potential energy if the mass was increased to 10kg?

The GPE will stay the same

The GPE will increase

The GPE will decrease

#18. How is kinetic energy stored?

Stored as the potential to fall and become kinetic energy

Stored as increased mass

Stored as movement

Stored in gravitational bonds between particles

#19. Why does the temperature of a material stay constant during the transition from liquid to gas?

the temperature is not relevant to states of matter

the particles are figuring out what to do

the particles are breaking the bonds with surrounding particles - this takes energy

#20. When a substance changes from a solid to a liquid, what happens to the mass?

The mass decreases

The mass increases

The mass stays the same

Stays the same because there has been no change in the number of particles. We say that the mass has been conserved.

#21. Using the kinetic energy equation – calculate the kinetic energy of a car with a mass of 1200kg travelling at 10 m/s. Include units. ? If you do not remember the kinetic energy equation it is listed below the quiz.

#22. Is this a parallel or series circuit?

Series

Parallel

#23. Which of the following are uses for magnets?

Select all that apply:

loudspeakers

electric motors

measuring the melting points of different liquids

confusing mice so they get lost in mazes

checking food for excess radiation

generators

#24. During Ernest Rutherford’s experiments with gold foil, why did some of the particles bounce back?

Alpha particles behave in unpredictable ways and can randomly change direction due to quantum effects

Alpha particles are positively charged, they were deflected when they met the positively charged protons in the nucleus

He fired electrons at the gold foil and when they met protons they were reflected back

#25. For circular motion to take place there must be a resultant force that acts towards the centre of the circle. What is the name of this force?

Centripital Force

Coriolis Force

Centrifugal Force

#26. Does a circuit need to be closed for current to flow?

Yes

No

#27. What is the approximate radius of a nucleus?

1 x 10⁻¹⁵

1 x 10⁻⁴

1 x 10⁻⁵

1 x 10⁻³

#28. In 1897 JJ. Thomson did a series of experiments that led to the discovery of which particles?

Protons

Neutrons

Electrons

Alpha particles

#29. Which of the following best describes energy?

Energy is the force we use to measure how far things move

Energy is the ability to do work - make things change

Energy is the rate at which electricity is transferred

#30. What is this component?

#31. Steel is a magnetic material – true or false?

false

true

#32. An object with a mass of 5kg is raised to 100m above the ground and has 500 J of gravitational potential energy. What will happen to the gravitational potential energy if the mass was increased to 16.3kg? Calculate the change in GPE where the gravitational field strength is 1 N/kg. Include units. ? If you do not know the GPE equation, it is listed below the quiz

#33. A crane raises a concrete bucket 12m into the air. The bucket including the cement weighs 850N. Calculate the work done. Answer to 1d.p and include the units. ? Do not include your workings in your answer

#34. What is the force acting on a conductor carrying current at right angles to a magnetic field when: magnetic flux density = 0.005 T , current = 3 A and length of wire = 150m?

5 N

1.76 N

2.25 N

#35. The melting point of gallium is 29.8˚C and the boiling point is 2204˚C. What state is gallium at 25˚C?

gas

solid

liquid

#36. This image shows Flemming’s Left Hand Rule. Which of the following answers are the correct interpretations of the rule? ? Select three answers, one for each finger

The middle finger shows the direction of the current

The middle finger shows the direction of the force

The thumb shows the direction of the magnetic field

The thumb shows the direction of the force

The index finger shows the direction of the current

The index finger shows the direction of the magnetic field

#37. What is the function of a variable resistor?

provides a constant resistance

provides variable resistance

safety component which can break a faulty circuit

gives power to a circuit

measures potential difference

releases light

measures current

allows current to only flow one way

two or more cells in a circuit

makes or breaks a circuit

#38. Does a current flow if there is no source of potential difference?

No

Yes

#39. What is the function of a switch?

measures current

releases light

measures potential difference

makes or breaks a circuit

safety components which can break a faulty circuit

allows current to only flow one way

gives power to a circuit

two or more cells in a circuit

provides variable resistance

provides a constant resistance

#40. A wire carrying a current experiences a force near a magnetic field. The size of the force is dependant on which three quantities?

Select all that apply:

The age of the magnetic field

The magnetic field strength

The shape of the magnetic field

The length of the wire

The size of the current

#41. True or False – Magnetic field lines are used to show how a single north pole would move from north to south?

true

false

#42. What is the boiling temperature of water?

55˚C

25˚C

30˚C

10˚C

66.5˚C

100˚C

#43. Calculate the change in height of the tennis ball in the following scenario. A ball weighs 0.15kg – the change in GPE is 100 J – the gravitational field strength is 10N/kg. Answer to 1dp and include units. ? If you do not know the GPE equation, it is listed below the quiz

#44. A current carrying conductor placed near a magnet experiences a force. The magnet also experiences a force, which is the best description of this force?

Equal and perpendicular

Unequal and opposite

Equal and opposite

Unequal and parallel

#45. Which of the following is the correct equation for work done?

F = d x E

E = F / d

E = F x d

#46. Calculate the distance travelled by the runner in the velocity/time graph.

The area under the graph = distance travelled

Split the graph into triangles and rectangles and calculate the areas. Then add together the areas.

Area of a rectangle = Length x Height

Area of a triangle = 1/2 x Length x Height

90m 120m 180m = 390m

NOTE: the graph starts at one second and not 0. Don’t be fooled, look at the axes carefully before attempting a question.

#47. Using the equation ρ = m/V, calculate the density of a gold bar that has a mass of 25kg and a volume of 0.0013m³. Answer to 1 decimal place and give your answer in kg/m³. ? The units for density are kg/m³, do not include them in your answer

#48. What is the function of a diode?

two or more cells in a circuit

provides variable resistance

makes or breaks a circuit

releases light

measures potential difference

safety component which can break a faulty circuit

provides a constant resistance

measures current

gives power to a circuit

allows current to only flow one way

#49. What is this component?

#50. Which of the following is the equation for change in gravitational potential energy?

GPE = mass x gravitational field strength x change in velocity

GPE = mass x gravitational field strength x change in vertical height

GPE = mass x kinetic energy x change in vertical height

#51. What is acceleration?

Change in the rate of velocity

Change in the rate of displacement

Increase in distance

#52. Magnets have north and south poles – if two south poles are put close together what will happen?

they will repel

they will attract

nothing will happen

#53. What is the mass number of an element?

the number of protons plus neutrons

the total number of subatomic particles in an atom

#54. How is gravitational potential energy stored?

Stored as increased mass

Stored in gravitational bonds between particles

Stored as the potential to fall and become kinetic energy

Stored as movement

#55. The needles of plotting compasses are tiny magnets – they always point near the Earth’s North Pole – why is this?

the Earth is round

magnets always point upwards

the Earth has a magnetic core

#56. When two magnets are placed alongside each other – what is the best way to describe the shape of the magnetic field they produce?

uniform

2-dimentional

erratic

#57. Iron is a magnetic material – true or false?

false

true

#58. What is the rate of acceleration in freefall?

#59. The gravitational field strength is higher on Earth than on the Moon. How does an astronaut’s weight change when they go from the Earth to the Moon?

Weight stays the same

Weight increases

Weight decreases

#60. What is the approximate radius of an atom?

1 x 10⁻¹⁰

1 x 10⁻³

1 x 10⁻¹⁵

1 x 10⁻³

#61. Are voltmeters connected in parallel or series?

Parallel

Series

#62. What is the name of the phase change from solid to liquid?

sublimation

freezing

melting

condensation

deposition

evaporation/boiling

#63. Cobalt is a magnetic material – true or false?

false

true

#64. What does F represent in the equation for work done?

Energy

Power

Force

Distance

#65. What is the equation for kinetic energy?

KE = 1/2 x mass x speed²

KE = mass x speed x time²

1

KE = 2.5 x mass x speed²

#66. Which theory do we use to describe states of matter?

Geometric Theory

Particulatory Coherence Theory

Particle/Kinetic Theory

#67. What is the name of the phase change from gas to liquid?

freezing

deposition

condensation

sublimation

evaporation/boiling

melting

#68. Which of the following was the Rutherford Model of atomic structure?

A mass of positively charged material with negatively charged electrons distributed throughout it

A central nucleus containing protons and neutrons, surrounded by electrons

#69. What is this component?

#70. Which scientist proposed the Plum Pudding Model?

John Dalton

Ernest Rutherford

JJ. Thomson

#71. What devices are used to determine the shape of a magnetic field?

potometers

magnetopipes

plotting compasses

carrot-toppers

#72. What is this component?

#73. Jack moves a cube weighing 250N. He moves the cube by 2.5m in a straight line. Calculate the work done by Jack. Answers to 1d.p, include the units. ? Do not include your workings in your answer

#74. What is current measured in?

Coulombs

Volts

Amperes or Amps

Ohms

#75. Which of the following are ways that a magnetic field of an electromagnet can be made stronger?

Select all that apply:

Placing an iron core inside the coil of wires

Reversing the direction of the current

Increasing the current flowing through the electromagnet

#76. What state of matter has particles which are close together and move around each other?

gases

liquids

solids

#77. What is this component?

#78. If a current travelling along a wire changes direction, does the magnetic field also change direction?

No

Yes

Occasionally

#79. Which of the following devices do we use to measure weight? ? 2 answers

Select all that apply:

A hydrometer

A newton-meter (force meter)

A potometer

A balance

Direction of magnetic field and current along a wire

#80. This diagram shows the direction of a magnetic field caused by a current flowing through a conductor. Where is the magnetic field strongest?

At an intermediate distance from the wire

Closer to the wire

Further from the wire

#81. Which device can you use to find the direction of a magnetic field?

A potometer

An anemometer

A plotting compass

#82. What is the function of a voltmeter?

gives power to a circuit

measures current

measures potential difference

#83. The equation for work done is E = F x d. Calculate the distance moved when a 650 J of work is done to move a 160 N object. Leave your answer to 1 d.p and include the units. ? Do not include your workings in your answer

#84. Fill in the blank: A current flowing through a wire causes a ………. field.

#85. What is this component?

#86. Magnets have north and south poles – if north and south poles are put close together what will happen?

nothing will happen

they will repel

they will attract

#87. If an object is moving in a circular path – what is happening to its velocity?

constant

constantly changing

declining over time

increasing over time

#88. What do we call the energy transferred by a force?

State change

Power shift

Work done

#89. What is this component?

#90. Magnets can attract magnetic materials – true or false?

true

false

GCSE OCR Physics A Papers 1 and 3

Good Luck!

Results

#1. Conventional current goes from:

#2. If a car experiences a resultant force in the forwards direction, what will happen to the motion of the car?

#3. A bar magnet is a permanent magnet – what does that mean?

#4. With electromagnetism the direction of the current depends on which of the following?

#5. Why would a wire carrying a current experience a force near a magnetic field?

#6. What is the function of an ammeter?

#7. Using the equation F = MA – calculate the force of a ball with a mass of 15kg that is accelerated at 2m/s²?

#8. In an equilibrium situation – the forces between two objects are?

#9. What is Newton’s First Law of Motion?

#10. True or False – Magnetic field lines that are far apart represent the strongest part of the field?

#11. A coil of wire with current flowing through it is an electromagnet. What else do we call a coil of wire?

#12. Calculate the acceleration of an object which has the following characteristics. Use the following equation v² − u² = 2 a x. Final velocity = 50m/s, Initial velocity 0m/s, Distance travelled = 350m

#13. What is this component?

#14. Complete the equation for weight. W = m x ……..

#15. Complete the sentence. Power is the rate at which…..

#16. In a parallel circuit, is the potential difference across each branch –

#17. An object with a mass of 5kg is 100m above the ground and has 35 J of gravitational potential energy. What will happen to the gravitational potential energy if the mass was increased to 10kg?

#18. How is kinetic energy stored?

#19. Why does the temperature of a material stay constant during the transition from liquid to gas?

#20. When a substance changes from a solid to a liquid, what happens to the mass?

#21. Using the kinetic energy equation – calculate the kinetic energy of a car with a mass of 1200kg travelling at 10 m/s. Include units. ? If you do not remember the kinetic energy equation it is listed below the quiz.

#22. Is this a parallel or series circuit?

#23. Which of the following are uses for magnets?

#24. During Ernest Rutherford’s experiments with gold foil, why did some of the particles bounce back?

#25. For circular motion to take place there must be a resultant force that acts towards the centre of the circle. What is the name of this force?

#26. Does a circuit need to be closed for current to flow?

#27. What is the approximate radius of a nucleus?

#28. In 1897 JJ. Thomson did a series of experiments that led to the discovery of which particles?

#29. Which of the following best describes energy?

#30. What is this component?

#31. Steel is a magnetic material – true or false?

#33. A crane raises a concrete bucket 12m into the air. The bucket including the cement weighs 850N. Calculate the work done. Answer to 1d.p and include the units. ? Do not include your workings in your answer

#34. What is the force acting on a conductor carrying current at right angles to a magnetic field when: magnetic flux density = 0.005 T , current = 3 A and length of wire = 150m?

#35. The melting point of gallium is 29.8˚C and the boiling point is 2204˚C. What state is gallium at 25˚C?

#36. This image shows Flemming’s Left Hand Rule. Which of the following answers are the correct interpretations of the rule? ? Select three answers, one for each finger

#37. What is the function of a variable resistor?

#38. Does a current flow if there is no source of potential difference?

#39. What is the function of a switch?

#40. A wire carrying a current experiences a force near a magnetic field. The size of the force is dependant on which three quantities?

#41. True or False – Magnetic field lines are used to show how a single north pole would move from north to south?

#42. What is the boiling temperature of water?

#43. Calculate the change in height of the tennis ball in the following scenario. A ball weighs 0.15kg – the change in GPE is 100 J – the gravitational field strength is 10N/kg. Answer to 1dp and include units. ? If you do not know the GPE equation, it is listed below the quiz

#44. A current carrying conductor placed near a magnet experiences a force. The magnet also experiences a force, which is the best description of this force?

#45. Which of the following is the correct equation for work done?

#46. Calculate the distance travelled by the runner in the velocity/time graph.

#47. Using the equation ρ = m/V, calculate the density of a gold bar that has a mass of 25kg and a volume of 0.0013m³. Answer to 1 decimal place and give your answer in kg/m³. ? The units for density are kg/m³, do not include them in your answer

#48. What is the function of a diode?

#49. What is this component?

#50. Which of the following is the equation for change in gravitational potential energy?

#51. What is acceleration?

#52. Magnets have north and south poles – if two south poles are put close together what will happen?

#53. What is the mass number of an element?

#54. How is gravitational potential energy stored?

#55. The needles of plotting compasses are tiny magnets – they always point near the Earth’s North Pole – why is this?

#56. When two magnets are placed alongside each other – what is the best way to describe the shape of the magnetic field they produce?

#57. Iron is a magnetic material – true or false?

#58. What is the rate of acceleration in freefall?

#59. The gravitational field strength is higher on Earth than on the Moon. How does an astronaut’s weight change when they go from the Earth to the Moon?

#60. What is the approximate radius of an atom?

#61. Are voltmeters connected in parallel or series?

#62. What is the name of the phase change from solid to liquid?

#63. Cobalt is a magnetic material – true or false?

#64. What does F represent in the equation for work done?

#65. What is the equation for kinetic energy?

#66. Which theory do we use to describe states of matter?

#67. What is the name of the phase change from gas to liquid?

#68. Which of the following was the Rutherford Model of atomic structure?

#69. What is this component?

#70. Which scientist proposed the Plum Pudding Model?

#71. What devices are used to determine the shape of a magnetic field?

#72. What is this component?

#73. Jack moves a cube weighing 250N. He moves the cube by 2.5m in a straight line. Calculate the work done by Jack. Answers to 1d.p, include the units. ? Do not include your workings in your answer

#74. What is current measured in?

#75. Which of the following are ways that a magnetic field of an electromagnet can be made stronger?

#76. What state of matter has particles which are close together and move around each other?

#77. What is this component?

#78. If a current travelling along a wire changes direction, does the magnetic field also change direction?