GCSE OCR Physics A Papers 1 and 3 Automarked

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

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

GPE = mass x gravitational field strength x change in velocity

GPE = mass x kinetic energy x change in vertical height

#2. 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

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

it is a magnet most of the time

it is only temporarily magnetic

it is always magnetic

it is a very strong magnet

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

potometers

plotting compasses

carrot-toppers

magnetopipes

#5. Are gases fluids?

Yes

No

#6. 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

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

The resistance of the wire x the current

The strength of the current

The direction of the current

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

liquids

gases

solids

#9. What is the function of an LED?

gives power to a circuit

two or more cells in a circuit

allows current to only flow one way

safety component which can break a faulty circuit

measures current

measures potential difference

provides variable resistance

releases light

provides a constant resistance

makes or breaks a circuit

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

the total number of subatomic particles in an atom

the number of protons plus neutrons

#11. What is this component?

#12. What is Newton’s Third 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

#13. What is the equation for kinetic energy?

KE = 2.5 x mass x speed²

KE = mass x speed x time²

KE = 1/2 x mass x speed²

1

#14. Which greek letter represents density?

ρ

V

m

#15. 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

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

Select all that apply:

A newton-meter (force meter)

A hydrometer

A balance

A potometer

#17. 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 add together in the centre and become nearly uniform and strong

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

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

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

evaporation/boiling

melting

deposition

freezing

condensation

sublimation

#19. What is the boiling temperature of water?

55˚C

30˚C

100˚C

10˚C

66.5˚C

25˚C

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

Density = mass x volume

Density = weight / volume

Density = mass / volume

#21. Electrons are negatively charged, so they move to which terminal of a battery or cell?

Positive

Negative

Direction of magnetic field and current along a wire

#22. 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

#23. What is happening to the speed of the object in the graph between 0 and 8 seconds?

Deceleration

No change

Acceleration

#24. Does the total amount of current change from the positive to the negative terminal?

No

Yes

Yes, but only if there is more than 1 component in the circuit

Because current is conserved.

#25. Kate and Emma both walk up 10 stairs, moving 4.5m higher than before. Emma does this in 2.7 seconds, Kate does this in 3.2 seconds. Which girl has exerted the most power?

Kate

Emma

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

Energy is transferred

Energy is destroyed

Energy is created

#27. Fill in the gap. In a parallel circuit, the current …… at a junction.

Splits

Doubles

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

No

Yes

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

magnets always point upwards

the Earth has a magnetic core

the Earth is round

#30. 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

#31. 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

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

gases

liquids

solids

#33. 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

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

true

false

#35. How is gravitational potential energy stored?

Stored as the potential to fall and become kinetic energy

Stored as increased mass

Stored in gravitational bonds between particles

Stored as movement

#36. Determine the speed of the object between 1 and 3 seconds. ? answer to 2 decimal places

#37. 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.

2.8 m/s²

5 m/s²

2.6 m/s²

3 m/s²

Use the following equation:

a = (v − u)

t

#38. 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

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

nothing will happen

they will repel

they will attract

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

Work done

State change

Power shift

#41. What is this component?

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

nothing will happen

they will attract

they will repel

#43. Find the volume of a silver block that has a mass of 159g and a density of 10.49 g/cm³. Give your answer in cm³ and to 1 decimal place.

#44. A car makes a journey to the shop and back. Calculate the overall displacement travelled by the car.

#45. 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 decrease

The GPE will stay the same

The GPE will increase

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

A caliper

A solenoid

A theodolite

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

1 x 10⁻³

1 x 10⁻⁵

1 x 10⁻⁴

1 x 10⁻¹⁵

#48. What is acceleration?

Change in the rate of displacement

Change in the rate of velocity

Increase in distance

#49. 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

#50. What is the function of a voltmeter?

measures potential difference

gives power to a circuit

measures current

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

deposition

freezing

evaporation/boiling

melting

sublimation

condensation

#52. How is kinetic energy stored?

Stored as movement

Stored in gravitational bonds between particles

Stored as increased mass

Stored as the potential to fall and become kinetic energy

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

Yes

No

#54. 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.

Magnitude

Velocity

Displacement

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

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

every action has an equal and opposite reaction

F = MA

#56. Calculate the overall distance travelled by the object in the graph.

#57. What is this component?

#58. What is this component?

#59. Conventional current goes from:

Negative terminal to positive terminal

Positive terminal to negative terminal

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

Power

Force

Distance

Energy

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

liquid

solid

gas

#62. What is the function of an ammeter?

gives power to a circuit

measures current

measures potential difference

#63. What is the function of a diode?

measures potential difference

gives power to a circuit

two or more cells in a circuit

provides a constant resistance

safety component which can break a faulty circuit

allows current to only flow one way

releases light

measures current

provides variable resistance

makes or breaks a circuit

#64. 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 size of the current

The length of the wire

The magnetic field strength

The shape of the magnetic field

The age of the magnetic field

#65. 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

#66. What is the function of a cell?

makes or breaks a circuit

allows current to only flow one way

safety component which can break a faulty circuit

measures potential difference

two or more cells in a circuit

provides variable resistance

gives power to a circuit

measures current

releases light

provides a constant resistance

#67. What is this component?

#68. Calculate the acceleration of the object in the graph between 5 and 6 seconds.

1 m/s²

2 m/s²

10 m/s²

20 m/s²

This is a straight-line graph.

Calculate the gradient of a straight-line graph using the following:

y₂ – y₁ / x₂ – x₁

30-20/6-5 = 10m/s²

This is the same as a simpler version:

Rise/run

or vertical distance / horizontal distance

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

constantly changing

constant

increasing over time

declining over time

#70. 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 / current x length

F = magnetic flux density x current x length

F = magnetic flux density x resistance x current

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

Momentum

Time

Gravitational field strength

Speed

#72. What is the function of a switch?

provides variable resistance

gives power to a circuit

releases light

allows current to only flow one way

two or more cells in a circuit

measures potential difference

measures current

makes or breaks a circuit

provides a constant resistance

safety components which can break a faulty circuit

#73. 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.

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

E = F / d

F = d x E

E = F x d

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

false

true

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

No

Yes

Occasionally

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

A = M/F

A = F/M

A = MF²

A = FM

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

#78. What is this component?

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

true

false

#80. What is this component?

#81. Which scientist proposed the Plum Pudding Model?

John Dalton

Ernest Rutherford

JJ. Thomson

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

erratic

2-dimentional

uniform

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

melting

condensation

evaporation/boiling

sublimation

deposition

freezing

#84. What is this component?

#85. What the the most dense state of matter?

gases

plasma

solids

liquids

#86. What is induced magnetism?

when water comes close to a magnet it begins to heat up slowly due to the magnetic field

where two bar magnets are placed on top of each other and they rotate due to the magnetic field

temporary magnetic properties which are passed on to magnetic materials in the presence of magnetic fields

#87. What is this component?

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

weight (N)

distance (m)

time taken (s)

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

Select all that apply:

atoms cannot be broken down into smaller parts

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

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

atoms cannot be created or destroyed

atoms can be created and destroyed

all matter is made up of tiny spheres called atoms

#90. What does E represent in the equation for work done?

Elasticity

Power

Work done

Distance moved

GCSE OCR Physics A Papers 1 and 3

Results

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

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

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

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

#5. Are gases fluids?

#6. 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?

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

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

#9. What is the function of an LED?

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

#11. What is this component?

#12. What is Newton’s Third Law of Motion?

#13. What is the equation for kinetic energy?

#14. Which greek letter represents density?

#15. 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

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

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

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

#19. What is the boiling temperature of water?

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

#21. Electrons are negatively charged, so they move to which terminal of a battery or cell?

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

#23. What is happening to the speed of the object in the graph between 0 and 8 seconds?

#24. Does the total amount of current change from the positive to the negative terminal?

#25. Kate and Emma both walk up 10 stairs, moving 4.5m higher than before. Emma does this in 2.7 seconds, Kate does this in 3.2 seconds. Which girl has exerted the most power?

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

#27. Fill in the gap. In a parallel circuit, the current …… at a junction.

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

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

#30. 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

#31. 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

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

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

#35. How is gravitational potential energy stored?

#36. Determine the speed of the object between 1 and 3 seconds. ? answer to 2 decimal places

#37. 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.

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

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

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

#41. What is this component?

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

#43. Find the volume of a silver block that has a mass of 159g and a density of 10.49 g/cm³. Give your answer in cm³ and to 1 decimal place.

#44. A car makes a journey to the shop and back. Calculate the overall displacement travelled by the car.

#45. 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?

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

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

#48. What is acceleration?

#49. 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?

#50. What is the function of a voltmeter?

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

#52. How is kinetic energy stored?

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

#54. 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.

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

#56. Calculate the overall distance travelled by the object in the graph.

#57. What is this component?

#58. What is this component?

#59. Conventional current goes from:

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

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

#62. What is the function of an ammeter?

#63. What is the function of a diode?

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

#65. What is a resultant force?

#66. What is the function of a cell?

#67. What is this component?

#68. Calculate the acceleration of the object in the graph between 5 and 6 seconds.

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

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

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

#72. What is the function of a switch?

#73. 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.

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

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

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

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

#78. What is this component?

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