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Forms Of Energy
Test Description: Uses and forms of energy and review of physical properties.
Instructions: Answer all questions to get your test result.
1) What form of energy is used to cook food in a solar cooker?
A
Electrical energy
B
Mechanical energy
C
Sound energy
D
Thermal energy
2) What type of energy is created by vibrations of matter?
A
Thermal energy
B
Mechanical energy
C
Sound energy
D
Electrical energy
3) What type of energy does a dam use to generate electricity using moving water?
A
Thermal energy
B
Mechanical energy
C
Sound energy
D
Electical energy
4) When light passes through any type of lens, it _____________________.
A
reflects
B
refracts
C
dissolves
D
disappears
5) Students wanted to test cups to see which was the best thermal insulator. They used several different ypes of cups with the same amount of water at the same temperature. What was the variable in the experiment?
A
The amount of time
B
The amount of water
C
The type of cups used
D
The heat of the water
6) When a dolphin swims, it uses high-pitched sounds to find food and communicate with other dolphins. What type of energy is it using to swim?
A
Light energy
B
Electrical energy
C
Mechanical energy
D
Sound energy
7) Which of the following is not an insulator of electricity?
A
Plastic
B
Wood
C
Copper
D
Rubber
8) A fan uses electricity which is transformed into ___________________.
A
Mechanical energy
B
Thermal energy
C
Sound energy
D
All if these
9) When light hits a shiny objects it bounces off. What do we call the bouncing off of light?
A
Reflection
B
Refraction
C
Absorption
D
Diffraction
10) What do you call a type of material that stops the flow of energy and protects us from getting burned or electrocuted?
A
Conductor
B
Resistor
C
Variable
D
Insulator
11) What property of light allows us to see shadows?
A
Light reflects off shiny objects
B
Light travels in a straight line
C
Light curves around objects
D
The sun is the main source for light
12) Which of the following is not soluble in water?
A
Salt
B
Sugar
C
Sand
D
Lemon juice
13) Things look broken, larger, or in a different place in water. This is caused when light is ___________.
A
Reflected
B
Absorbed
C
Refracted
D
Density
14) When you put a piece of wood in the water it floats. When you put the same piece in oil, it sinks. Put them in order from most dense to least dens.
A
Water, oil, wood
B
Oil, wood, water
C
Oil, water, wood
D
Water, wood, oil
15) A student placed two magnets next to each other with the North poles facing each other. What will happen and why?
A
They will repel because they are opposites
B
They will attract because they are alike
C
They will attract because they are opposites
D
They will repel because they are alike
16) Riding a bike, sharpening a pencil, and opening a door all require what type of energy?
A
Mechanical energy
B
Light energy
C
Electrical energy
D
Sound energy
17) Which of the following items takes the most amount of force to move?
A
Index card
B
Pencil
C
Chair
D
School bus
18) Which of the following make a mixture when added to water and stirred because they all retain their physical properties
A
Sand, pepper, and rocks
B
Tea, sugar, and a lemon slice
C
Salt, marbles, and sugar
D
Food coloring, drink mix, and sugar
19) Light reflects when it hits a shiny object. What do we call it when we hear sound that bounces off of objects and back to us?
A
Density
B
Pitch
C
Volume
D
Echo
20) What do you call the amount of space an objects takes up?
A
Volume
B
Mass
C
Density
D
Solubility
*select an answer for all questions
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