WorksheetsPW6 Energy
Total questions: 18
Worksheet time: 17mins
Name
Class
Date
1.
In energy transformations, "wasted energy" usually takes what form?
a)
heat
b)
chemical energy
c)
light
d)
sound waves
2.
Efficiency is calculated by useful energy output divided by total energy input, expressed as a percentage
a)
False
b)
True
3.
Heat energy is also called ______ energy.
a)
chemical
b)
electrical
c)
mechanical
d)
thermal
4.
The process of energy changing from one form into another
a)
efficency
b)
law of conservation of energy
c)
energy transformation
d)
thermal energy
5.
Which of the following energy transformations occur when a lamp that is plugged into a wall socket is functioning correctly?
a)
Chemical to light
b)
Electrical to chemical
c)
Electrical to light
d)
Chemical to electrical
6.
Electrical Energy is transferred to _____ Energy.
a)
Thermal
b)
Solar
c)
Electrical
d)
None
7.
Which energy transformation occurs in a toaster?
a)
chemical to electric
b)
electric to thermal
c)
kinetic to chemical
d)
thermal to potential
8.
What kind of energy does an object possess when it's resting on top of the hill?
a)
Potential Energy
b)
Chemical Energy
c)
Kinetic Energy
d)
All of the above
9.
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%
10.
What is an energy transfer?
a)
Dancing
b)
Movement of energy
c)
Movement of energy from one store to another
d)
something moving
11.
What is energy?
a)
moving energy
b)
stored energy
c)
renewable energy
d)
The ability to do work.
12.
All sound is made by ________.
a)
space
b)
squeaks
c)
beeps
d)
vibrations
13.
What type of energy is in this picture?
a)
Kinetic
b)
Potential
c)
Chemical
d)
Sound
14.
When plants convert the sun's energy into food, which type of energy is it?
a)
kinetic
b)
chemical
c)
thermal
d)
radiant
15.
What kind of energy does this device use?
a)
Chemical
b)
Electrical
c)
Thermal
d)
Chemical
16.
A battery converts what type of energy to another?
a)
sound to kinetic
b)
light to heat
c)
mechanical to electrical
d)
chemical to electrical
17.
The glow sticks produce light for a short amount of time. The light from the glow stick is a conversion from what to what?
a)
thermal to light
b)
gravitational to potential
c)
radiant to electrical
d)
chemical to light
18.
What is energy measured in?
a)
Joules
b)
Watt
c)
Kilowatt
d)
Jewels
100 %
