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P1 practise

Total questions: 58

Worksheet time: 29mins

Name
Class
Date
1.

An object will have this stored any moment

a)

Friction

b)

Sound

c)

Kinetic

d)

Energy

2.

Where is Gravitational Potential Energy the greatest in a bungee jump?

a)

At the middle point

b)

At the lowest point

c)

At the highest point

d)

None of the above

3.

Energy can't...

a)

Be created

b)

Change form

c)

Be stored

4.

What is the wasted energy output from a TV?

a)

Sound and Light

b)

Thermal

c)

Chemical and Nuclear

d)

Gravitational and Thermal

5.

Which energy store decreases as an object falls?

a)

Kinetic

b)

Heat

c)

Gravitational

d)

Magnetic

6.

Which energy store increases as an object falls?

a)

Kinetic

b)

Gravitational

c)

Magnetic

d)

Nuclear

7.

In a pendulum swing, where is kinetic energy at the greatest?

a)

At the bottom point

b)

Before being let go

c)

Quarter way through the swing

8.

Which is the most effective way to increase the Gravitational Potential Energy of an object?

a)

Decrease size

b)

Increase size

c)

Increase drop height

d)

Increase size and drop height

9.

What energy does food store?

a)

Kinetic

b)

Thermal

c)

Chemical

d)

Gravitational

10.

When a bungee rope is at maximum extension, which energy store is the greatest?

a)

Gravitational

b)

Thermal

c)

Elastic

d)

Kinetic

11.

When a rubber band is stretched..

a)

It's elastic potential energy store increases

b)

It's elastic potential energy store stays the same

c)

It's elastic potential energy store increases

d)

It's gravitational potential energy store increases

12.

Which energy store is the greatest at the top of a rollercoaster ride?

a)

Kinetic energy

b)

Thermal energy

c)

Gravitational potential energy

d)

Elastic potential energy

13.

A gas boiler transfers energy from a ............. store

to a .......... store.

a)

Chemical store to a thermal store

b)

Chemical to kinetic

c)

Kinetic to chemical

d)

Thermal store to kinetic store

e)

Gravitational potential store to kinetic store

14.

As water falls from the shower, energy is transferred from a

.............. store to a .................. store.

a)

Chemical store to a thermal store

b)

Chemical to kinetic

c)

Kinetic to chemical

d)

Thermal store to kinetic store

e)

Gravitational potential store to kinetic store

15.

A ceiling fan transfers energy from a ................ store

of the power station to a ..................store of the moving air.

a)

Chemical store to a thermal store

b)

Chemical to kinetic

c)

Kinetic to chemical

d)

Thermal store to kinetic store

e)

Gravitational potential store to kinetic store

16.

A large drill is used to make a hole through rocks in the Earth’s surface to extract oil.

Suggest why the drill is water-cooled as it moves through the rocks.

a)

To keep the drill wet because the rock will dry it

b)

To keep the drill cool because friction will heat it

c)

To keep the drill clean because rocks make it dirty

17.

Write down the equation that links gravitational potential energy, mass, gravitational field strength, and height.

a)

GPE = (m x h) / g

b)

GPE = m x g x h

c)

GPE = 1/ (m x g x h)

d)

GPE = m / (g x h)

18.

Calculate the gravitaional potential energy gained when a 4kg mass is lifted 5m, Gravitational field strength, g is 10 N/kg

a)

2J

b)

19J

c)

200m

d)

200J

19.

The gravitational potential energy of an object lifted 16 m above the surface is 320 J.

Calculate the mass of this object

(Gravitational field strength, g is 10 N/kg)

a)

51,200 kg

b)

2kg

c)

20kg

d)

512kg

20.

What is the equation that links speed, energy, and mass?

a)


KE = mv2KE\ =\ mv^2

b)

KE = 12 mvKE\ =\ \frac{1}{2\ }mv

c)

KE=12 mv2KE=\frac{1}{2\ }mv^2

d)

KE=12m2v2KE=\frac{1}{2}m^2v^2

21.

A 4kg mass has kinetic energy of 32J what is the velocity of the mass?

a)

16m/s

b)

4m/s

c)

2m/s

d)

1m/s

22.

What is the equation for the elastic potential energy stored in a spring?

a)

Energy = k eEnergy\ =\ k\ e

b)

Energy = 12 k eEnergy\ =\ \frac{1}{2\ }k\ e

c)

Energy = 12 k e2Energy\ =\ \frac{1}{2\ }k\ e^2

d)

Energy = 12 k2e2Energy\ =\ \frac{1}{2\ }k^2e^2

23.

What is the energy stored in a spring when k = 10N/m and e = 2m

a)

20J

b)

40J

c)

80J

d)

100J

24.

What is the extension of a bungee rope if it gains 8000J if the spring constant is 1000N/m

a)

4m

b)

8m

c)

16m

d)

2m

25.

When you are an investigator in an experiment, you chose the ___ variable to change

a)

independent

b)

dependent

c)

variable

d)

controls

26.

All experiments need some things to stay the same, the ____, so the experiment is fair and valid

a)

independent

b)

dependent

c)

variables

d)

constants

27.

Work Done =

a)

Force / distance

b)

Force x distance

c)

Force x distance2

d)

Force2 x distance

28.

The unit of Work done is...

a)

Newton (N)

b)

Meter (m)

c)

Joule (J)

d)

Second (s)

29.

Which is the unit of Force?

a)

Joule (J)

b)

Meter (m)

c)

Watt (W)

d)

Newton (N)

30.

The unit of distance is...

a)

Second (s)

b)

Meter (m)

c)

Joule (J)

d)

Watt (W)

31.

Which is the unit of Force?

a)

Joule (J)

b)

Meter (m)

c)

Watt (W)

d)

Newton (N)

32.

The unit of distance is...

a)

Second (s)

b)

Meter (m)

c)

Joule (J)

d)

Watt (W)

33.

Weight =

a)

mass x gravitational field strength

b)

mass / gravitational field strength

c)

mass x height

d)

gravitational field strength x height

34.

Which is the unit of Weight?

a)

Joule (J)

b)

Watt (W)

c)

Newton (N)

d)

Meter (m)

35.

The unit of mass is...

a)

Meter (m)

b)

Joule (J)

c)

Newton (N)

d)

Kilogram (kg)

36.

The unit of gravitational field strength ....

a)

Newtons per kilogram (N / kg)

b)

Newton (N)

c)

Joule (J)

d)

Joules per second (J / s)

37.

Gravitational Potential Energy =

a)

mass x height

b)

gravitational field strength x height

c)

mass x gravitational field strength x height

d)

weight x mass

38.

Which is the unit of energy?

a)

Joule (J)

b)

Newton (N)

c)

Kilogram (kg)

d)

Watt (W)

39.

Efficiency =

a)

Useful Energy / Total Energy (x 100%)

b)

Useful Energy / Wasted Energy (x 100%)

c)

Wasted Energy / Total Energy (x 100%)

d)

Total Energy / Useful Energy (x 100%)

40.

Power =

a)

Energy x time

b)

Energy / time

c)

time / energy

d)

energy2 / time

41.

Which of these is the unit of power?

a)

Joule (J)

b)

Kilogram (kg)

c)

Newtons per meter (N / m)

d)

Watt (W)

42.

The unit of time is...

a)

Meter (m)

b)

Second (s)

c)

Kilogram (kg)

d)

Joule (J)

43.

What is the definition of efficiency?

a)

A measure of how much energy is wasted by an appliance

b)

A measure of how quickly energy is transferred to an appliance

c)

A measure of the energy transferred usefully to an appliance

d)

A measure of the energy given off to the surroundings by an appliance

44.

Which key term is used to describe energy being spread out or wasted?

a)

Efficient

b)

Deficient

c)

Dissipate

d)

Elevate

45.

What term is used to describe a method for reducing unwanted energy transfers by reducing friction?

a)

Insulation

b)

Titration

c)

Lubrication

d)

Dissipation

46.

What is a thermal insulator?

a)

A non-conductive material

b)

A conductive material

47.

What is the name of the method of reducing unwanted energy transfers by the use of non-conductive materials?

a)

Insulation

b)

Titration

c)

Lubrication

d)

Dissipation

48.

What is the law of conservation of energy?

a)

Energy is created and transferred

b)

Energy is created and stored

c)

Energy is stored and destroyed

d)

Energy is stored and transferred

49.

How does thermal conductivity of a material affect the rate of conduction across that material?

a)

The higher the conductivity, the faster the rate of conduction

b)

The higher the conductivity, the slower the rate of conduction

c)

The lower the conductivity the faster the rate of conduction

50.

What is the equation linking energy transferred, power and time?​

a)

Power = energy x time

b)

Power = energy / time

c)

Energy = time / power

51.

What are the units of power?

a)

Joules (J)

b)

Watts (W)

c)

Kilograms (kg)

d)

Newtons (N)

52.

What is the definition of power?

a)

How much electricity passes through an appliance

b)

The amount of energy wasted by an appliance

c)

The rate of energy transfer or the rate of doing work

d)

The rate of electron transfer

53.

What is the equation linking power, time and work done?​

a)

Power = work done / time

b)

Power = work done x time

c)

Work done = power / time

54.

Which energy transfers relate to an object being projected upwards?

a)

Increase chemical, increase KE, increase sound

b)

Increase GPE, decrease KE, increase thermal

c)

Increased KE, decreased GPE

d)

Decrease GPE, increase KE, increase thermal

55.

Which energy transfers relate to a moving object hitting an obstacle?

a)

Decrease sound, decrease chemical, decrease thermal

b)

Increase sound, decrease chemical, increase thermal

c)

Decrease KE, increase sound, increase thermal

d)

Increase KE, increase chemical, decrease thermal

56.

Which energy transfers relate to a vehicle accelerating?

a)

Increase chemical, increase elastic, increase sound

b)

Decrease chemical, decrease KE, increase thermal

c)

Decrease chemical, increase KE, increase thermal

57.

Which energy transfers relate to a vehicle decelerating?

a)

Increase chemical, increase elastic, increase sound

b)

Decrease chemical, decrease KE, increase thermal

c)

Decrease chemical, increase KE, increase thermal

58.

Which energy transfers relate to a boiling kettle?

a)

Decrease electrical, increase thermal, increase sound

b)

Decrease electrical, increase thermal, increase chemical

c)

Increase electrical decrease thermal, increase sound

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