Free Printable SCSHS Wk 6 Year 8 Science Revision

1.

The faster an object moves, the ________ kinetic energy it has.

a)

more

b)

less

c)

none of the above

d)

all of the above

2.

The statement that "the energy within a system remains constant and cannot be created or destroyed, only transformed" best sums up _________.

a)

Something Mr. Lance likes to say.

b)

Life

c)

Law of Conservation of Energy

d)

The scientific method

e)

Newton's Third Law

3.

What is energy?

a)

something that picks up things, like a magnet.

b)

Motion of an object

c)

ability to do work

d)

magic rays of sunshine that come down when you're feeling blue.

4.

Which is the best example that something has kinetic energy?

a)

a. a car parked on a steep hill

b)

b. a tennis ball rolling across the court

c)

c. a picture hanging on the wall

d)

d. a piece of coal before it's burned

5.

What is kinetic energy?

a)

energy of work

b)

energy of motion

c)

energy of gravity

d)

energy of power

6.

The SI unit in which kinetic energy is measured is

a)

Newton

b)

Kilogram

c)

Joules

d)

Metres per second

7.

Calculate the kinetic energy of a moving 4 kg object travelling at a velocity of 3 m/s $Kinetic\ Energy=\frac{1}{2}\times mass\times velocity^2$

a)

18 J

b)

36 J

c)

12 J

d)

6 J

8.

What is the kinetic energy of a 4kg shotput thrown with a velocity of 13m/s $Kinetic\ Energy\ =\ \frac{1}{2}\ \times\ mass\ \times\ velocity^2$

a)

676 J

b)

52 J

c)

17J

d)

338 J

9.

Which energy type?
A mousetrap set and ready to spring

a)

Potential

b)

Kinetic

10.

Which energy type?
A marble rolling down the aisle of your science classroom

a)

Potential

b)

Kinetic

11.

Which letter shows where is potential energy stored or at its maximum point?

a)

Y

b)

W

c)

X

d)

Z

12.

Which letter shows where kinetic energy is at is highest point?

a)

X

b)

Y

c)

W

d)

Z

13.

Where is kinetic energy at its minimum?

a)

Z

b)

W

c)

X

d)

Y

14.

At what position does the cyclist have the least gravitational potential energy?

a)

A

b)

B

c)

C

d)

D

15.

The pizza that you eat has ___ energy.

a)

Chemical

b)

Electrical

c)

Kinetic

d)

Sound

16.

Potential energy that depends on the height of an object

a)

elastic energy

b)

gravitational energy

c)

electrical energy

d)

chemical energy

17.

Identify the type of energy

a)

Electrical Energy

b)

Mechanical energy

c)

Sound energy

d)

Thermal energy

18.

Identify the type of energy

a)

Thermal energy

b)

Sound energy

c)

Mechanical energy

d)

Electrical energy

19.

Identify the type of energy

a)

Thermal energy

b)

Mechanical energy

c)

Sound energy

d)

Electrical energy

20.

The _______________ is transformed into electrical energy inside the battery.

a)

Chemical energy

b)

Sound energy

c)

Kinetic energy

d)

Sun energy

21.

What kind of energy is represented in the picture?

a)

Thermal

b)

Chemical

c)

Electrical

d)

Radiant

22.

Energy released from food after it is eaten

a)

electrical

b)

nuclear

c)

chemical

d)

radiant

23.

What type of energy does this provide?

a)

heat

b)

light

c)

sound

d)

heat and light

24.

On a roller coaster, where is maximum (or most) potential energy?

a)

At the bottom of a big hill

b)

When going around a corner

c)

When going upside down

d)

At the top of a big hill

25.

Wind turbines and windmills convert (or change) what energy to another?

a)

Kinetic to electric

b)

Gravitational potential to electric

c)

Mechanical to potential

d)

Thermal to sound

26.

Turning on the radio is what type of energy conversion?

a)

sound to light

b)

electrical to sound

c)

electrical to light

d)

light to electrical

27.

Describe the energy conversion of a clothes dryer.

a)

Chemical→ Thermal and Radiant

b)

Electrical → Elastic, Thermal and Sound

c)

Gravitational → Nuclear, Sound and Thermal

d)

Electrical → Thermal, Motion and Sound

28.

At point 1, what is the gravitational potential energy (GPE)?

a)

4 J

b)

50 J

c)

200 J

d)

1960 J

29.

At point 1, what is the kinetic energy (KE)?

a)

0 J

b)

400 J

c)

200 J

d)

1960 J

30.

Using the equation for KE= $\frac{1}{2}mv^2$ , what is the energy of the 5-kg moving object moving at 4 m/ $s^2$ ?

a)

20 Joules

b)

40 Joules

c)

30 Joules

d)

1.2 Joules

31.

What happens to the to the KINETIC energy as the ball falls from point A to point C?

a)

It decreases

b)

It increases

c)

It doesn't change

32.

Which of the following is an example of chemical energy being changed into kinetic energy?

a)

Digested food giving you energy to jump.

b)

A battery giving a flashlight energy to light up.

c)

A hand hitting a drum making music.

d)

Two liquids mixed together and get hot.

33.

________ energy is stored energy. Stored chemically in fuel, the nucleus of atom, and in foods.

a)

Thermal

b)

Mechanical

c)

Kinetic

d)

Potential

34.

What energy is the energy of heat, which transfers from hotter objects to colder objects? This energy comes from the motion of atoms and molecules. The faster the particles in an object move, the more ________ energy is produced.

a)

Kinetic

b)

Radiant

c)

Thermal

d)

Chemical

35.

_____________________ is energy that comes from the sun.

a)

Nuclear Energy

b)

Chemical Energy

c)

Electrical Energy

d)

Solar Energy

36.

Which type of energy transformation occurs when a flashlight shines?

a)

chemical → thermal → electrical

b)

chemical → electrical → light

c)

thermal → chemical → light

d)

chemical → electrical → chemical

37.

When water falls through a dam and turns a turbine connected to a generator, electricity is produced. This electricity is often used to light our homes and offices. Which of the following shows the energy transformations that occurs?

a)

electrical → light → mechanical

b)

chemical → mechanical → electrical

c)

mechanical → chemical → light

d)

mechanical → electrical → light

38.

Which of the following shows the correct order of the energy transformations that occur when green plants produce their food from the Sun’s energy?

a)

chemical → thermal

b)

light → chemical

c)

thermal → light

d)

chemical → electrical

39.

What is the independent variable on the graph (x-axis)?

a)

Metro Bicycle Shop Weekly Sales

b)

Bicycles Sold

c)

Types of Bicycles

40.

What is the dependent variable on the graph (y-axis)?

a)

Metro Bicycle Shop Weekly Sales

b)

Bicycles Sold

c)

Types of Bicycles

41.

How many mountain bikes were sold?

a)

22

b)

28

c)

16

d)

6

42.

When was the greatest amount of shoppers at the store?

a)

10am

b)

1pm

c)

6pm

d)

2pm

43.

1. The graph shows how many pencils, erasers, and pens were sold on the first day of school at the school store.

Using the graph, what is the total number of pencils and pens sold on the first day of school at the school store?

a)

30

b)

40

c)

70

d)

90

44.

How could you increase the gravitational potential energy of an object without changing its mass and gravity?

a)

Make the object larger

b)

Lower the object towards the ground

c)

Raise the object farther off the ground

d)

Allow the object to roll on the ground

45.

How could you increase the object's gravitational potential energy (GPE) without changing its distance from the ground (height) and gravity?

a)

Decrease the object's mass

b)

Increase the object's height

c)

Increase the object's mass

d)

Decrease the object's height

46.

Calculate the gravitational potential energy of a car with a mass of 1300kg at the top of a 52m high hill.

a)

4.86 x 10⁵ J

b)

6.56 N

c)

6.62 x 10⁵ J

d)

None of the answers are correct

47.

Resources that are not able to be reproduced as quickly as they are used are called _____.

a)

Renewable resources

b)

Non-renewable resources

48.

What are fossil fuels?

a)

Solar, Wind, Hydro

b)

Coal, Solar, Natural Gas

c)

Coal, Oil, Natural Gas

49.

Which of the following is a renewable resource?

a)

Oil

b)

Solar

c)

Coal

d)

Natural Gas

50.

What is one DISADVANTAGE of using fossil fuels?

a)

Fossil fuels will never run out.

b)

Fossil fuels are very efficient forms of energy and are readily available, making them cheaper.

c)

Burning fossil fuels contributes to the greenhouse effect which causes global warming.

d)

Fossil fuels are better for the environment.

51.

Why is solar energy considered renewable energy?

a)

It's cheaper than fossil fuels

b)

The sun's energy would not run out for billions of years

c)

Solar energy recharges batteries

d)

All of them

52.

_____________ power is electricity produced by flowing water.

a)

Solar

b)

Wind

c)

Hydroelectric

d)

water

53.

What is a disadvantage of wind power?

a)

We have too many rainy days in US

b)

It is not always windy in some places

c)

Companies charge too much to make the wind blow

d)

The sun is not always out

54.

A 5-kilogram ball gets kicked in the air to a maximum height of 39 meters. At the peak, what is the ball's gravitational potential energy?

a)

1911 J

b)

195 J

c)

2947 J

d)

8017 J

55.

Spots, the leopard whose mass is 55.0 kg, climbs 12.0 meters up a tree. What is Spots's gravitational potential energy relative to the ground?

a)

6468 J

b)

384 J

c)

9372 J

d)

0.09 J

56.

At which point does the ball has the greatest gravitational potential energy (GPE)?

a)

A

b)

G

c)

D

d)

C

e)

G

57.

How could you increase the gravitational potential energy of an object without changing its mass and gravity?

a)

Make the object larger

b)

Lower the object towards the ground

c)

Raise the object farther off the ground

d)

Allow the object to roll on the ground

58.

What kind of energy is coal?

a)

renewable

b)

non renewable

59.

All of the following are problems caused by burning coal, except

a)

Creates smog

b)

It is radioactive

c)

Contributes to acid rain

d)

Contributes to global warming

60.

Which of the following is a source of non-renewable energy?

a)

Solar

b)

Methane

c)

Hydroelectric

d)

Coal

61.

A 20 kg box is lifted 6 m above the ground. How much gravitational potential energy does it have? $GravitationalPotentialEnergy=mass\times gravity(9.8)\times height$

a)

120 J

b)

200 J

c)

1200 J

d)

60 J

62.

A 50 kg jogger jumps 1.6 m off the ground. What was his GPE? Remember to keep height in meters and mass in kgs. $GravitationalPotentialEnergy=mass\times gravity(9.8)\times height$

a)

80 J

b)

500 J

c)

160 J

d)

800 J

63.

A 6kg cat misjudges a jump and falls 5 meters. How much gravitational potential energy does the cat have? $GravitationalPotentialEnergy=mass\times gravity(9.8)\times height$

a)

294 J

b)

180000 J

c)

1225 J

d)

3920000 J

SCSHS Wk 6 Year 8 Science Revision

Total questions: 63

Worksheet time: 1hrs 3mins

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