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Y9 GCSE Physics Revision

Total questions: 55

Worksheet time: 2hrs 30mins

Name
Class
Date
1.
According to which law of energy, energy can't be created or destroyed?
a)
First law of motion
b)
The law of tacos
c)
Laws of Energy
d)
law of conservation of energy
2.
Heat energy is also called
a)
electrical energy
b)
chemical energy
c)
light energy
d)
thermal energy
3.
Stored energy is called ______ energy.
a)
Kinetic
b)
Potential
c)
Pacific
d)
Safe
4.
YOUR BODY OBTAINS ENERGY FROM THE FOOD YOU EAT. WHAT IS THE FORM OF ENERGY IN FOOD?
a)
KINETIC
b)
ELASTIC
c)
GRAVITATIONAL
d)
CHEMICAL
5.
WHEN AN ARCHER BENDS A BOW, WHAT TYPE OF ENERGY INCREASES IN THE BOW?
a)
GRAVITATIONAL
b)
ELASTIC
c)
KINETIC
d)
THERMAL
6.
AS A ROLLER COASTER MOVES DOWN A HILL, POTENTIAL ENERGY IS CONVERTED INTO KINETIC ENERGY, THERMAL ENERGY, AND SOUND ENERGY. WHAT IS TRUE ABOUT THE TOTAL ENERGY OF THIS SYSTEM?
a)
ENERGY IS GAINED (CREATED) AS THE ROLLER COASTER MOVES
b)
ENERGY IS LOST (DESTROYED) AS THE ROLLER COASTER MOVES
c)
THE TOTAL ENERGY REMAINS THE SAME AS THE ROLLER COASTER MOVES
d)
THE TOTAL ENERGY CONSTANTLY CHANGES AS THE ROLLER COASTER MOVES
7.
SAM STUDIED KINETIC AND POTENTIAL ENERGY BY OBSERVING APPLES HANGING ON A TREE DURING A FIELD INVESTIGATION. WHAT TYPE OF ENERGY DO THE APPLES HAVE?
a)
KINETIC
b)
MECHANICAL
c)
GRAVITATIONAL
d)
ELASTIC
8.

Two factors that determine work are

a)

force

b)

acceleration

c)

mass

d)

distance

e)

velocity

9.
Energy can be _____________ or changed from one type to another.
a)
destroyed
b)
transferred
c)
created
d)
ignored
10.
In this experiment, the WARM red dye and the COLD blue dye was placed in the water at the same time. The warm red dye rose to the top while the cold blue dye sank to the bottom.
a)
conduction
b)
convection
c)
radiation
11.
Which is a renewable source of energy?
a)
oil
b)
nuclear
c)
wind
d)
natural gas
12.

Total energy = 200J
Useful energy = 20J

Workout the efficiency of this lightbulb.
efficiency = useful enegytotal energy in ×100efficiency\ =\ \frac{useful\ enegy}{total\ energy\ in}\ \times100  

a)

100%

b)

80%

c)

40%

d)

10%

13.

Total energy = 34000J
Useful energy = 340J

Workout the efficiency of this vintage VW Beetle.
efficiency = useful energytotal energy in ×100%efficiency\ =\ \frac{useful\ energy}{total\ energy\ in}\ \times100\%  

a)

100%

b)

10%

c)

40%

d)

20%

14.

This car needs 8600J of energy to power it. If 5000J is changed into useful energy, how much energy is wasted?

a)

13600J

b)

3600J

c)

5000J

d)

8600J

15.

A car transfers 100 J of chemical energy in order to gain 50 J of kinetic energy. The efficiency of the car is

a)

20%

b)

0.5%

c)

50%

d)

200%

16.

What percent energy is wasted by a machine if the energy input is 262 J and the energy output is 131 J?

a)

5%

b)

50%

c)

100 J

17.

Warming up near a campfire is an example of ...

a)

conduction

b)

convection

c)

radiation

d)

connection

18.

A blow dryer uses __________ to dry your hair.

a)

convection

b)

conduction

c)

radiation

d)

connection

19.

A stove top will cook your food because of ___________.

a)

convection

b)

conduction

c)

radiation

d)

connection

20.

Warming up near a campfire is an example of ...

a)

conduction

b)

convection

c)

radiation

d)

connection

21.
Which appliance transfers the most energy per second? 
a)
Clock
b)
Lamp
c)
Desktop Computer
d)
Iron
22.
What are we paying electrical companies?
a)
The power of the appliance per hour of use.
b)
We electricity used per hour. 
c)
The impact of electricity use on the environment.
d)
The efficiency of the appliance.
23.
A kettle transfers 1000J of energy every 2 seconds. Calculate its power.
a)
2000 Watts
b)
1000 Watts
c)
500 Watts
d)
cannot be determined
24.
What is the unit of measurement for power?
a)
Joules
b)
Watts
c)
Voltage
d)
Calories
25.
Is the amount of energy being transferred over a period of time.
a)
Power
b)
Energy
c)
Seconds
d)
Joules
26.

What kind of energy can be found in a bowl of fruit?

a)

Electrical Energy

b)

light Energy

c)

kinetic Energy

d)

Thermal Energy

e)

Chemical Energy

27.

Which of the following describes an object with elastic potential energy?

a)

a cannon ball sitting at the bottom of a cannon

b)

an iceberg floating in ocean water that is 35°F

c)

a boulder teetering on the edge of a steep cliff

d)

a bed spring that is pushed together with a weight

28.

How does sealing a house help in reducing heat loss?

a)

It prevents heat loss by radiation

b)

It stops heat loss by conduction

c)

It prevents heat loss by convection

d)

It increases heat loss by evaporation

29.

What is the main purpose of using thermal insulation in buildings?

a)

To increase the temperature inside the house

b)

To reduce unwanted energy transfers

c)

To allow more air to circulate

d)

To make the house look more attractive

30.

What is the role of foam seals around doors and windows?

a)

To allow air to pass through

b)

To prevent heat loss by convection

c)

To increase heat loss by conduction

d)

To make the house soundproof

31.

Why are materials with low thermal conductivity used in building walls?

a)

They are cheaper

b)

They conduct heat very well

c)

They do not conduct heat well

d)

They are more durable

32.

How does double glazing help in reducing heat loss?

a)

It allows more sunlight to enter

b)

It reduces heat loss by conduction

c)

It increases air circulation

d)

It makes the windows more transparent

33.

What is the main problem caused by friction in energy transfer?

a)

It increases the speed of objects

b)

It reduces the efficiency of energy transfer

c)

It makes objects more colourful

d)

It decreases the temperature of objects

34.

How does lubrication help in reducing friction?

a)

It increases the surface area

b)

It makes surfaces rougher

c)

It reduces the resistance between surfaces

d)

It increases the weight of objects

35.

Why is it beneficial to make cars and planes streamlined?

a)

To increase their weight

b)

To reduce air resistance

c)

To make them more colourful

d)

To increase their size

36.

Which of the following materials is most effective in reducing energy loss due to heat conduction?

a)

Copper

b)

Aluminum

c)

Fiberglass

d)

Steel

37.
Where is the potential energy the greatest?
a)
A
b)
B
c)
C
d)
D
38.

What is the unit of energy

a)

N

b)

kg

c)

J

d)

W

39.

What is this diagram called?

a)

Stankey Diagram

b)

Sankey Diagram

c)

Sankay Diagram

d)

Samkay Diagram

40.
Where does most of the energy go in this transformation.
a)
Electrical energy
b)
Light
c)
Heat
d)
other
41.
What two types of measurements make up DENSITY? 
a)
Mass and Volume
b)
Temperature and Mass
c)
Grams and Centimeters
d)
Volume and Weight
42.
What is the formula for density?
a)
density = mass x volume
b)
density = mass / volume
c)
density = mass + volume
d)
density = mass - volume
43.
Put the liquids in order from most dense to least dense?
a)
4, 3, 2, 1
b)
1, 2, 3, 4
c)
3, 4, 2, 1, 
d)
4, 3, 1, 2
44.
Why does ice float?
a)
Liquid water is less dense than solid water.
b)
Solid water is less dense than liquid water.
c)
Gaseous water is less dense than solid water.
d)
Liquid water is less dense than gaseous water.
45.
Frank has an eraser. It has a mass of 4g, and a volume of 2cm3. What is its density?
a)
8 g/cm3
b)
2 g/cm3
c)
1/2 g/cm3
d)
24 g/cm3
46.
Jack has a rock. The rock has a mass of 14g and a volume of 2cm3. What is the density of the rock?
a)
7 mL
b)
7 g/cm3
c)
28 g/cm3
d)
1/7 g/cm3
47.

You calculated the density of an unknown substance to be 7.8g/cm3. According to the chart, which of the substances doe you most likely have?

a)

Zinc

b)

Copper

c)

Tin

d)

Iron

48.

Does 1cup or 6cups of water have a higher density?

a)

1 cup

b)

6 cups

c)

They have the same density

49.

State the volume of liquid present in the measuring cylinder.

a)

3.3

b)

3.4

c)

3.5

d)

3.6

50.
What is the volume of this rectangular prism?
a)
26 cubic units
b)
24 cubic units
c)
24 square units
d)
26 square units
51.
Which formula can be used to find the volume of a rectangular prism?
a)
length x width
b)
length x width x height
c)
height x length
d)
length + width + height
52.
Joy wants to create a box with a volume of 8 cubic units. Which dimensions would work?
a)
length: 8 units
width: 8 units
height: 8 units
b)
length: 2 units
width 4 units
height: 3 units
c)
length: 4 units
width: 2 units
height: 2 units
d)
length: 2 units
width: 4 units
height: 1 unit
53.
Each side of this ice cube measures 2 inches.  What is the volume of the ice cube?
a)
6 cubic inches
b)
8 cubic inches
c)
12 cubic inches
d)
8 square inches
54.

What is the formula for Mass?

a)

Mass/Volume

b)

Density x Volume

c)

Mass/Density

55.

What is the formula for Volume?

a)

Mass/Volume

b)

Density x Volume

c)

Mass/Density

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