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Physics - GCSE revision

Total questions: 75

Worksheet time: 46mins

Name
Class
Date
1.

To calculate the elastic potential energy you must use the equation: Ee = 0.5 x spring constant x extension2. (Extension must be in metres, m) Calculate the elastic potential energy stored in a spring with a spring constant of 200 N/m that has been stretched from a length of 117 cm to a length of 127 cm.

a)

0.1 J

b)

1.0 J

c)

10.0 J

d)

100.0 J

2.

An electric motor transfers 24 J of energy usefully, but wastes 16 J of energy in doing so. What is the efficiency of the motor?

a)

16 J ÷ 24 J = 0.67

b)

24 J ÷ 16 J = 1.5

c)

16 J ÷ 40 J = 0.4

d)

24 J ÷ 40 J = 0.6

3.

If the speed of an object is increasing, its (a)   energy store is increasing.

4.

As an object falls it gains kinetic energy as its _______________ ___________ energy store decreases.

(a)  

5.

Which of the following is not a use of ultrasound?

a)

Cleaning machinery

b)

Sterilising medical apparatus

c)

Scanning in hospitals

d)

Range-finding

6.

The three types of fossil fuel are natural gas, coal and ...

a)

methane

b)

oil

c)

uranium

d)

wood

7.

Nuclear power is...

a)

renewable

b)

non-renewable

8.
What characteristic do all renewable resources share?
a)
Produced by waste products
b)
Form underground from dead organisms.
c)
Replaced in a short period of time
d)
Allow energy to pass through them easily
9.

One disadvantage of geothermal energy is that ________________________________.

a)

a plant cannot be built ANYWHERE

b)

it doesn't cost a lot of money to build

c)

it can provide power 24 hours a day

d)

it doesn't harm ecosystems where it's built

10.

What is the half life of this radioactive element

a)

100s

b)

40s

c)

50s

d)

10s

11.

The correct notation to complete this nuclear equation for beta decay is

a)
b)
c)
d)
12.

I am a fast moving electron stopped by aluminium - what am I?

a)

alpha

b)

beta

c)

gamma

13.

I am a high frequency electromagnetic wave stopped by thick lead - what am I?

a)

alpha

b)

beta

c)

gamma

14.

I am two neutrons and two protons, and stopped by paper - what am I?

a)

alpha

b)

beta

c)

gamma

15.

In a solid the particles

a)

are far apart and random

b)

are far apart and regular

c)

are close together and random

d)

are close together and regular

16.

In a liquid the particles

a)

are far apart and random

b)

are far apart and regular

c)

are close together and random

d)

are close together and regular

17.

What is this symbol?

a)

Thermistor

b)

Resistor

c)

LED

d)

Diode

18.

What is equation Elastic Potential Energy Stored:

a)

Ee = 1/2 Ke2

b)

Ke2 = 1/2 Ee

c)

Ee = (1/2)/( Ke2)

19.

The law of conservation of energy states that …

a)

energy is always constant

b)

energy cannot be transferred or created, only destroyed

c)

energy cannot be created or destroyed, only transferred

d)

energy cannot be transferred, only created and destroyed

20.

Select the non-magnetic element

a)

Iron

b)

Cobalt

c)

Nickel

d)

Copper

21.

Magnetic field lines always go from

a)

North to South

b)

South to North

22.

Which rule applies the direction of a magnetic field created from an electrical current flowing through a wire?

a)

Right hand rule

b)

Left hand rule

c)

Neither

23.

Which of these factors can increase the strength of an electromagnet?

a)

Number of coils of wire

b)

Strength of electrical current flowing through wire

c)

Having an iron core

d)

Potential difference

e)

All of the above

24.

What is magnetic flux density measured in?

a)

Teslas

b)

Amps

c)

Musks

d)

Pascals

25.

What is the equation that links gravitational field strength (g), mass (m) and weight (W)?

a)

Weight = Mass x Gravitational Field Strength, or W=mg

b)

Weight = Mass / Gravitational Field Strength, or W=m/g

c)

Weight = Gravitational Field Strength / Mass, or W=g/m

26.

What is the equation that links extension (e), force applied to a spring (F) and spring constant (k)?

a)

Force applied to a Spring = Spring Constant x Extension, or F=ke

b)

Force applied to a Spring = Spring Constant / Extension, or F=k/e

c)

Force applied to a Spring = Extension / Spring Constant, or F=e/k

27.

What is the equation that links acceleration (a), change in velocity (Δv) and time (t)?

a)

Acceleration = Change in Velocity x Time, or a=Δv x t

b)

Acceleration = Change in Velocity / Time, or a=Δv/t

c)

Acceleration = Time / Change in Velocity, or a=t/Δv

28.

What is the equation that links kinetic energy (Ek), mass (m) and velocity (v)?

a)

Kinetic Energy = 0.5 x Mass x Velocity², or Ek=0.5 x m x v2

b)

Kinetic Energy = 0.5 x Mass² x Velocity, or Ek=0.5 x m2 x v

c)

Kinetic Energy = 0.5 x Mass² / Velocity, or Ek=0.5 x m2 / v

29.

What is the equation that links frequency (f), wavelength (λ) and wave speed (v)?

a)

Wave Speed = Wavelength x Frequency, or v=λf

b)

Wave Speed = Wavelength / Frequency, or v=λ/f

c)

Wave Speed = Frequency / Wavelength, or v=f/λ

30.

What is the equation that links density (ρ), mass (m) and volume (V)?

a)

Density = Volume x Mass, or ρ=Vm

b)

Density = Mass / Volume, or ρ=m/V

c)

Density = Volume / Mass, or ρ=V/m

31.

What are the units of power?

a)

Joules

b)

Newtons

c)

Amps

d)

Watts

e)

Kilowatt-hours

32.

Which of these is not a force?

a)

Kinetic

b)

Thrust

c)

Tension

d)

Drag

e)

Friction

33.

Which of these are measured in Joules? Tick all that apply (two answers).

a)

Kinetic energy

b)

Weight

c)

Thrust

d)

Power

e)

Work done

34.

Describe the motion in the graph:

a)

Constant Speed (positive slope)

b)

Stopped (at rest)

c)

Acceleration (increasing speed)

d)

Return Home (negative slope)

35.

Describe the motion in the graph:

a)

Constant Speed (positive slope)

b)

Stopped (at rest)

c)

Acceleration (increasing speed)

d)

Return Home (negative slope)

36.

Select the description of motion from A - B.

a)

Slowing down away from the origin

b)

Speeding up away from the origin

c)

Constant velocity away from the origin

d)

Constant velocity towards the origin

37.

Use the picture above to choose the most accurate description of the object's motion

a)

object is at rest

b)

object is slowing down

c)

object is moving at a constant speed

d)

object is speeding up

38.

At what time does the object switch directions?

a)

15 minutes

b)

40 minutes

c)

10 minutes

d)

30 minutes

39.

Acceleration in first 4 seconds?

a)

1

b)

3/2

c)

2

d)

4

40.
Heat transfer in the image.
a)
conduction
b)
convection
c)
radiation
41.
Heat transfer in boiling water.
a)
Conduction
b)
Convection
c)
Radiation
42.
A student opens the top window and the bottom window in a hot room. What statement best describes the heat transfer occurring in the room?
a)
conduction
b)
radiation
c)
convection
d)
evaporation
43.

What happens when the ball goes from the highest position to the lowest position

a)

PE and KE increases and decreases together

b)

Impossible to know without knowing the mass of the object

c)

the PE decreases while KE increases

44.

The thermal energy of a substance is called the........

a)

Maternal energy

b)

External energy

c)

Paternal energy

d)

Internal energy

45.

What is the melting point of iron?

a)

0 oC

b)

1500 oC

c)

2800 oC

d)

3300 oC

46.

At what point do the particles have the most kinetic energy?

a)

A

b)

C

c)

D

d)

F

47.

What state is iron in between C and D?

a)

solid

b)

liquid

c)

gas

d)

plasma

48.

During which two sections of the graph does the temperature stay constant? (You must choose two answers)

a)

A to B

b)

B to C

c)

C to D

d)

D to E

e)

E to F

49.

Between which two points is iron a solid?

a)

A to B

b)

B to C

c)

C to D

d)

D to E

e)

E to F

50.

Example of a transverse wave?

a)

Electromagnetic wave

b)

Sound

c)

P-Waves

51.

Example of a longitudinal wave?

a)

P-waves

b)

S-waves

c)

Radio waves

d)

Ultraviolet light

52.

In a transverse wave, oscillations are ____ to direction of energy transfer

a)

Parallel

b)

Perpendicular

53.

What device would you use for viewing oscillations in waves?

a)

Oscilloscope

b)

Stroboscope

c)

Frequency generator

d)

Wave detector

54.

Angle of incidince always =?

a)

Angle of reflection

b)

2*angle of reflection

c)

Variable

d)

1/angle of reflection

55.

Which type of electromagnetic wave has the second highest frequency?

a)

X-Ray

b)

Gamma Rays

c)

Ultra Violet

d)

Micro waves

56.

What type of wave is used by satellites?

a)

Radio Waves

b)

Micro Waves

c)

Infra red

d)

Visible light

57.

Magnification =

a)

Image height/object height

b)

Object height/Image height

58.

Ultrasound is sound above ____ Hz

a)

10,000

b)

20,000

c)

15,000

d)

17,500

59.

When a substance changes state, there is a change in mass. True or false?

a)

True

b)

False

60.

Internal energy is....(2 answers)

a)

...stored in the atoms and molecules that make up the system

b)

...the sum of the total kinetic energy and potential energy of particles

c)

... the stored in gases when they are moved around

d)

...increased by moving the substance from one place to another

61.

Look at the following equation E = m c ΔθE\ =\ m\ c\ \Delta\theta  What does the c stand for?

a)

Mass

b)

change in temperature

c)

Latent heat

d)

specific heat capacity

62.

Look at the equation: E=mLE=mL  What does the L stand for?

a)

Latent Heat

b)

Mass

c)

Energy

d)

Specific Heat Capacity

63.

A gas is kept at a constant volume, but it is heated up. What happens to the pressure of the gas?

a)

Pressure increases because particles hit the sides of the container more frequently (they have more KE)

b)

Pressure increases because particles hit the sides each other more frequently (they have more KE)

c)

Pressure decreases because particles have more room to move so don't hit the sides of the containers as often.

d)

Pressure decreases because particles have more room to move so don't hit each other as often.

64.

A gas is kept at a constant temperature but it's volume is decreased. What happens to the pressure of the gas?

a)

It increases as the particles have more kinetic energy and hit the sides of the container more

b)

It increases as the particles have less space to move, so hit the sides of the container more frequently

c)

It decreases as the particles have less kinetic energy and hit each other less

d)

It decreases as the particles have more space to move, so hit each other less

65.

What is the unit for pressure?

a)

Pa

b)

J

c)

kg/m3

d)

N

66.

The units for gravitational potential energy are...

a)

metres, m

b)

degrees Celsius, oC

c)

kilograms, kg

d)

Joules, J

67.
To convert cm to m...
a)
divide the cm by 100
b)
multiply the cm by 100
c)
multiply the cm by 1000
d)
divide the cm by 1000
68.

Which letter(s) represents the wavelength of the wave?

a)

a

b)

b

c)

c

d)

d

e)

e

69.

What is the amplitude of this wave?

a)

0.20 m

b)

0.40 m

c)

2.0 s

d)

4.0 s

70.

What is the time period of this wave?

a)

0.20 m

b)

0.40 m

c)

2.0 s

d)

4.0 s

71.

Which of the following do all regions of the electromagnetic spectrum have in common?

a)

Travel at the speed of light (3.0 x 10 8 m/s)

b)

Cannot travel in a vacuum

c)

Can be reflected, refracted and polarised

d)

Need a medium to travel in

72.
How far does the car travel before it reaches a steady speed?
a)
10m
b)
20m
c)
100m
d)
200m
73.
What is the structure of an alpha particle?
a)
An electron
b)
A neutron
c)
Two protons and two neutrons. This is the same as a helium nucleus.
d)
An electromagnetic wave
74.

Which type of radiation travels the furthest in air?

a)

Alpha

b)

Beta

c)

Sound

d)

Gamma

75.
What is the range of alpha radiation in air?
a)
A few centimetres (up to 5 cm)
b)
About 1 metre
c)
100 metres
d)
More than 1km (almost infinite)

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