GCSE OCR Physics A Papers 1 and 3 Automarked

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

they will attract

they will repel

nothing will happen

#2. What is this component?

Direction of magnetic field and current along a wire

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

Further from the wire

Closer to the wire

At an intermediate distance from the wire

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

true

false

#5. The diagram shows a solenoid. Why is the magnetic field stronger along the centre of the coil than on the outside? ? Select two answers

Select all that apply:

The fields cancel out to give a weaker field on the outside

The fields of the outside are weaker due to the greater potential difference at the centre of the wires in the coil

The fields add together in the centre and become nearly uniform and strong

The fields on the inside are stronger due to the nanoelectric effects of electromagnetic induction

#6. What is Newton’s Second Law of Motion?

every action has an equal and opposite reaction

objects in motion stay in motion and objects at rest stay at rest

F = MA

#7. What state of matter has particles which are far apart and move around independently?

liquids

solids

gases

#8. What the the least dense state of matter?

gases

liquids

Bose-Einstein Condensates

solids

#9. What is acceleration?

Increase in distance

Change in the rate of velocity

Change in the rate of displacement

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

10 Newtons

30 Newtons

360 Newtons

3 Newtons

#11. 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

#12. Where is most of the mass of an atom?

in the nucleus

orbiting the nucleus in the electrons

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

the total number of subatomic particles in an atom

the number of protons plus neutrons

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

1 x 10⁻⁴

1 x 10⁻¹⁵

1 x 10⁻³

1 x 10⁻⁵

#15. What is the name of the phase change from solid to gas?

condensation

evaporation/boiling

sublimation

freezing

deposition

melting

#16. 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)

#17. What is this component?

#18. Are voltmeters connected in parallel or series?

Parallel

Series

#19. What is this component?

#20. Acceleration is an increase in the rate of what?

gravitational potential energy

magnitude

velocity

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

deposition

freezing

evaporation/boiling

melting

condensation

sublimation

#22. Aluminium is a magnetic material – true or false?

true

false

#23. What is the function of an LED?

safety component which can break a faulty circuit

provides a constant resistance

releases light

makes or breaks a circuit

measures potential difference

measures current

gives power to a circuit

two or more cells in a circuit

provides variable resistance

allows current to only flow one way

#24. What is the function of a resistor?

gives power to a circuit

provides variable resistance

makes or breaks a circuit

measures potential difference

allows current to only flow one way

two or more cells in a circuit

provides a constant resistance

measures current

safety component which can break a faulty circuit

releases light

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

Energy

Power

Force

Distance

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

converging

diverging

equal

unequal

#27. 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?

1.76 N

2.25 N

5 N

#28. A student sets up a series circuit that has two filament lamps, a power source and a switch after the first lamp. Can the first lamp be turned off whilst keeping the second lamp on?

No

Yes

#29. 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.

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

it is a very strong magnet

it is a magnet most of the time

it is only temporarily magnetic

it is always magnetic

#31. What is this component?

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

A solenoid

A caliper

A theodolite

#33. What is the equation for kinetic energy?

KE = 1/2 x mass x speed²

1

KE = 2.5 x mass x speed²

KE = mass x speed x time²

#34. What is the name of the phase change from gas to solid?

melting

sublimation

freezing

deposition

evaporation/boiling

condensation

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

1 x 10⁻¹⁵

1 x 10⁻¹⁰

1 x 10⁻³

#36. What is the freezing point of water?

55˚C

30˚C

100˚C

0˚C

25˚C

66.5˚C

#37. Why did Ernest Rutherford’s experiments with gold foil demonstrate that most of atoms consists of empty space?

Most of the particles were destroyed when they met protons in the nucleus

Most of the atoms passed straight through the foil

Most of the atoms were deflected or bounced back

#38. Complete the sentence: Newton’s Second Law defines inertial mass. Inertial mass is a measure of how difficult it is to change the …….. of an object.

Velocity

Magnitude

Displacement

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

Energy is created

Energy is destroyed

Energy is transferred

#40. Which of the following best describes energy?

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

Energy is the rate at which electricity is transferred

Energy is the ability to do work - make things change

#41. Ernest Rutherford fired positive particles at a thin gold foil and showed that most of atoms is empty space. Which particles did he fire at the gold foil?

gamma rays

beta particles

alpha particles

#42. What is this component?

#43. 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.

#44. Which of the following is the correct equation for density?

Density = mass x volume

Density = mass / volume

Density = weight / volume

#45. What is potential difference measured in?

Amperes or Amps

Ohms

Volts

Coulombs

#46. What is this component?

#47. 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 magnetic field strength

The age of the magnetic field

The length of the wire

The shape of the magnetic field

The size of the current

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

false

true

#49. What is the function of a voltmeter?

measures current

gives power to a circuit

measures potential difference

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

F = d x E

E = F / d

E = F x d

#51. An electric motor does 70,000 J of work in 200 s. Calculate the Power of this action. Include the units and answer to 1d.p ? Do not include your workings in your answer

#52. What state of matter has particles which are close together and vibrate around fixed positions?

solids

liquids

gases

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

true

false

#54. Copper is a magnetic material – true or false?

true

false

#55. Complete the equation for power. Power (W) = work done (J) / ……..

time taken (s)

weight (N)

distance (m)

#56. What is the acceleration of an object that has an initial velocity of 10m/s and a final velocity of 50m/s. The object took 15s to accelerate to the final velocity.

5 m/s²

2.6 m/s²

3 m/s²

2.8 m/s²

Use the following equation:

a = (v − u)

t

#57. Are ammeters connected in series or in parallel?

Series

Parallel

#58. 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

#59. Which of the following equations is the correct way to make A the subject of the equation F = MA?

A = M/F

A = FM

A = MF²

A = F/M

Take a look at this video on rearranging equations if you got this one wrong.

#60. What is a resultant force?

A positive or negative net force when forces in each direction are taken into account

Where forces are completely balanced

A theoretical force that might exist but only in space

#61. 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 parallel

Unequal and opposite

Equal and opposite

#62. How is kinetic energy stored?

Stored in gravitational bonds between particles

Stored as the potential to fall and become kinetic energy

Stored as increased mass

Stored as movement

#63. What is this component?

#64. How can we describe the motion of the object in this graph between 7 and 10 seconds?

Decelerating

Moving at constant speed

Stationary

Accelerating

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

melting

freezing

evaporation/boiling

condensation

deposition

sublimation

#66. What is the function of a cell?

measures current

measures potential difference

provides a constant resistance

provides variable resistance

releases light

makes or breaks a circuit

safety component which can break a faulty circuit

two or more cells in a circuit

allows current to only flow one way

gives power to a circuit

#67. The force on a conductor carrying current at right angles to a magnetic field is expressed by which of the following equations?

F = magnetic flux density x resistance x current

F = magnetic flux density x current x length

F = magnetic flux density / current x length

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

liquid

gas

solid

#69. Is this statement true or false? As potential difference increases, the current across a component increases?

False

True

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

plotting compasses

carrot-toppers

potometers

magnetopipes

#71. What is this component?

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

Electrons

Alpha particles

Protons

Neutrons

#73. Is this a parallel or series circuit?

Series

Parallel

#74. What is the function of a switch?

provides variable resistance

measures current

releases light

two or more cells in a circuit

allows current to only flow one way

measures potential difference

provides a constant resistance

gives power to a circuit

safety components which can break a faulty circuit

makes or breaks a circuit

#75. 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

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

Momentum

Time

Speed

Gravitational field strength

#77. 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

#78. 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

Increasing the current flowing through the electromagnet

Reversing the direction of the current

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

Different

Equal

#80. 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

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

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

#81. What is this component?

#82. What is the function of a fuse?

makes or breaks a circuit

provides a constant resistance

releases light

provides variable resistance

safety component 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

measures current

measures potential difference

#83. Which of the following things were hypothesised by John Dalton in 1805? ? select 4 answers

Select all that apply:

all matter is made up of tiny spheres called atoms

atoms cannot be created or destroyed

atoms cannot be broken down into smaller parts

atoms are hard cubes that can be broken down into protons, neutrons and electrons

atoms can be created and destroyed

atoms in elements are identical, but elements have different types of atoms

#84. What is this component?

#85. What is the boiling temperature of water?

30˚C

66.5˚C

10˚C

25˚C

55˚C

100˚C

#86. 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 decreases

Weight stays the same

Weight increases

#87. Which greek letter represents density?

V

ρ

m

#88. Which of the following is the equation for acceleration?

A = HF/t

E = MC²

A=(v−u)/t

F = MA

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

provides variable resistance

measures potential difference

provides a constant resistance

releases light

measures current

allows current to only flow one way

makes or breaks a circuit

safety component which can break a faulty circuit

gives power to a circuit

two or more cells in a circuit

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

Yes

No

GCSE OCR Physics A Papers 1 and 3

Good Luck!

Results

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

#2. What is this component?

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

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

#5. The diagram shows a solenoid. Why is the magnetic field stronger along the centre of the coil than on the outside? ? Select two answers

#6. What is Newton’s Second Law of Motion?

#7. What state of matter has particles which are far apart and move around independently?

#8. What the the least dense state of matter?

#9. What is acceleration?

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

#11. 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

#12. Where is most of the mass of an atom?

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

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

#15. What is the name of the phase change from solid to gas?

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

#17. What is this component?

#18. Are voltmeters connected in parallel or series?

#19. What is this component?

#20. Acceleration is an increase in the rate of what?

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

#22. Aluminium is a magnetic material – true or false?

#23. What is the function of an LED?

#24. What is the function of a resistor?

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

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

#27. 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?

#28. A student sets up a series circuit that has two filament lamps, a power source and a switch after the first lamp. Can the first lamp be turned off whilst keeping the second lamp on?

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

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

#31. What is this component?

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

#33. What is the equation for kinetic energy?

#34. What is the name of the phase change from gas to solid?

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

#36. What is the freezing point of water?

#37. Why did Ernest Rutherford’s experiments with gold foil demonstrate that most of atoms consists of empty space?

#38. Complete the sentence: Newton’s Second Law defines inertial mass. Inertial mass is a measure of how difficult it is to change the …….. of an object.

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

#40. Which of the following best describes energy?

#41. Ernest Rutherford fired positive particles at a thin gold foil and showed that most of atoms is empty space. Which particles did he fire at the gold foil?

#42. What is this component?

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

#44. Which of the following is the correct equation for density?

#45. What is potential difference measured in?

#46. What is this component?

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

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

#49. What is the function of a voltmeter?

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

#51. An electric motor does 70,000 J of work in 200 s. Calculate the Power of this action. Include the units and answer to 1d.p ? Do not include your workings in your answer

#52. What state of matter has particles which are close together and vibrate around fixed positions?

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

#54. Copper is a magnetic material – true or false?

#55. Complete the equation for power. Power (W) = work done (J) / ……..

#56. What is the acceleration of an object that has an initial velocity of 10m/s and a final velocity of 50m/s. The object took 15s to accelerate to the final velocity.

#57. Are ammeters connected in series or in parallel?

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

#59. Which of the following equations is the correct way to make A the subject of the equation F = MA?

#60. What is a resultant force?

#61. 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?

#62. How is kinetic energy stored?

#63. What is this component?

#64. How can we describe the motion of the object in this graph between 7 and 10 seconds?

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

#66. What is the function of a cell?

#67. The force on a conductor carrying current at right angles to a magnetic field is expressed by which of the following equations?

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

#69. Is this statement true or false? As potential difference increases, the current across a component increases?

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

#71. What is this component?

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

#73. Is this a parallel or series circuit?

#74. What is the function of a switch?

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

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

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