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WorksheetsUnit 2 Forms of Energy
Total questions: 36
Worksheet time: 3hrs 51mins
In the picture the top of the pencil does not line up with the bottom of the pencil. What causes this?
Light rays bend the pencil
Light is absorbed by the pencil
Light rays are reflected in the water
Light rays are refracted by water
Which object requires only mechanical energy to perform its main function?
A
B
C
D
What types of energy does the toy oven use to bake the cakes?
Light and sound
Electrical and thermal
Thermal and mechanical
Mechanical and electrical
Which activities on the list are examples of the use of mechanical energy?
Activities 1, 4, and 6
Activities 2, 4, and 5
Activities 1 and 2
Activities 3, 5, and 6
What kinds of energy are needed in this investigation to change the state of matter of the candle?
Thermal and mechanical
Mechanical, light, and electrical
Electrical and thermal
Light, mechanical, and thermal
Musical instruments cause air to vibrate, sending waves that are detected by our senses. What is the energy we are detecting?
Sound Energy
Thermal Energy
Light Energy
What form of energy does the sun give?
sound and thermal
light and thermal
mechanical and light
thermal and mechanical
What type of energy is being used when riding a bicycle?
mechanical
light
thermal
sound
What form of energy is talking?
mechanical
light
sound
thermal
What form of energy is used when pushing something?
mechanical
light
thermal
sound
What tool can be used to measure thermal energy?
balance
thermometer
ruler
scale
Which of these is NOT an example of the bicycle using mechanical energy?
The pedals, gears, and chin help turn the wheels.
The wheels turn when the bicycle moves.
The front wheel guides the bicycle as it moves.
The reflector allows the bicycle to be seen at night.
What is energy?
The ability to do work
A force
Electricity
The ability to transform work
Anytime anything moves energy is involved
true
false
When a lamp is plugged in and turned on it converts ____ energy to _____ energy.
mechanical to light
electrical to sound
electrical to light
Why is electrical wiring usually made from copper?
Because copper is shiny
Because copper conducts electricity
Because copper is not magnetic
Because copper insulate electricity
What is a circuit with several paths for electricity to flow?
conductor
series circuit
parallel circuit
open circuit
A material that does NOT let electricity pass through it is called ...
An electrical conductor
An electrical insulator
An electrical source
An electric appliance
What is a circuit that only has ONE path for electricity to flow?
series circuit
closed circuit
parallel circuit
light bulb
To complete the circuit, a wire should be placed from —
What would best complete this circuit?
A wire
A switch
A battery
A light bulb
What does the picture demonstrate?
Light bends as is passes through the object
Light being absorbed
Light travels in straight lines
Light reflecting on a shiny smooth surface
Corrective lens refract light.
True
False
What form of energy does this use?
Mechanical
Electrical
Light
Sound
I open the door to let my dog outside. Which of these activities uses the same type of energy that I used to open the door?
Talking to someone using sound energy.
Lighting light bulbs using electrical energy.
Playing the drum using mechanical energy.
Burning wood using thermal energy.
