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Physics-Energy

Total questions: 20

Worksheet time: 11mins

Name
Class
Date
1.
Energy stored in atomic bonds that form molecules
a)
Thermal Energy
b)
Chemical Energy
c)
Electrical Energy
d)
Electromagnetic Energy
2.
Energy of moving particles of atoms that make up all  matter. 
a)
Thermal Energy 
b)
Chemical Energy 
c)
Electrical Energy 
d)
Electromagnetic Energy 
3.
Energy of electric charges moving through conductors
a)
Electrical Energy
b)
Electromagnetic Energy
c)
Thermal Energy
d)
Chemical Energy
4.
Energy stored in the nucleus of an atom, released when protons or neutrons are added to or removed from the nucleus 
a)
Chemical Energy 
b)
Electrical Energy 
c)
Mechanical Energy 
d)
Nuclear Energy 
5.

Energy that is stored is called...

a)

Kinetic Energy

b)

Potential Energy

c)

Mechanical Energy

d)

Thermal Energy

6.
At what position does the pendulum have the greatest gravitational potential energy?
a)
Position D
b)
Position C
c)
Position B
7.
At what position does the pendulum have the greatest kinetic energy?
a)
Position D
b)
Position C
c)
Position B
8.

When you eat fruits and vegetables, chemical bonds are releasing stored energy, this is...

a)

a. thermal energy

b)

b. sound energy

c)

c. electrical energy

d)

d. chemical energy

9.
Which of the following is a conversion from light energy to chemical energy?
a)
a. turning on a stove to heat dinner
b)
b. turning on a lamp
c)
c. growing an apple tree
d)
d. making toast in a toaster
10.
After an energy conversion, you end up with the same total amount of energy as the original amount of potential energy. Which of the following laws explains this rule?
a)
a. law of energy changes
b)
b. law of conservation of energy
c)
c. law of power and energy
d)
d. law of potential energy
11.
Walking on the warm sand sand with your bare feet.
a)
conduction
b)
convection
c)
radiation
12.

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.What's the name of this phenomenon?

a)
conduction
b)
convection
c)
radiation
13.
The law of conservation of energy states that when one form of energy is converted into another,
a)
energy is destroyed in the process
b)
no energy is destroyed in the process
c)
energy is created in the process
d)
some amount of energy cannot be accounted for
14.
In energy transformations, "wasted energy" usually takes what form?
a)
heat
b)
chemical energy
c)
light
d)
sound waves
15.

The SI Unit for Energy is

a)

Joule

b)

Potential

c)

Calorie

d)

Kilojoule

16.

A kettle uses 100J of electrical energy to produce 7J of sound energy and 93J of thermal energy. How efficient is the kettle?

a)

100%

b)

7%

c)

93%

d)

95%

17.

A washing machine uses 250J of electrical energy to produce 125J of useful energy. How efficient is it?

a)

5%

b)

50%

c)

55%

d)

100%

18.
No machine in existence has 100% efficiency due to ____________________.
a)
magic
b)
friction
c)
smoke
d)
input
19.
What energy transformation occurs from a light bulb? 
a)
Electrical energy = kinetic energy + potential energy 
b)
Electrical energy = electrical energy 
c)
Electrical energy = chemical energy 
d)
Electrical energy = light energy + thermal energy 
20.
a)

A

b)

B

c)

C

d)

D

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