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Energy STAAR Review
Test Description: 5 forms of energy and force
Instructions: Answer all questions to get your test result.
1) Which of the following cannot be a source of electrical energy?
A
solar
B
hydroelectric
C
battery
D
wood block
2) A force that attracts two objects towards each other is called
A
gravity
B
Newton
C
magnetism
D
friction
3) When a radio is turned on, electrical energy transforms into
A
mechanical energy
B
light energy
C
sound energy
D
thermal energy
4) What kind of energy causes ice to melt?
A
Thermal
B
Mechanical
C
Sound
D
Electrical
5) When a set of keys sinks to the bottom of a pool, this is because of which property?
A
conductivity
B
solubility
C
density
D
mass
6) What type of material would be the best insulator when trying to not burn your hand on a hot cup?
A
plastic wrap
B
cardboard
C
paper
D
clothe bag
7) Which of the following is not needed in a circuit for it to still function properly?
A
resistor
B
source of energy
C
copper wires
D
insulator
8) Which kind of energy occurs due to vibrations?
A
sound
B
electrical
C
thermal
D
mechanical
9) Which is not a good example of an insulator?
A
plastic
B
wood
C
paper
D
iron
10) Light energy _____ when it passes through a medium
A
Cements
B
Bounces
C
Refracts
D
Reflections
11) What kind of energy does walking use?
A
mechanical
B
light
C
sound
D
thermal
12) Which of the following does not refract light using a lens?
A
still pond
B
glasses
C
camera
D
telescope
13) When light reflects off a smooth and shiny surface it is considered to have _____.
A
bounced
B
bent
C
burned
D
bouyancy
14) What form of energy can come from a fire?
A
electrical and solar
B
light and thermal
C
thermal and solar
D
electrical and mechanical
15) When you see yourself in a mirror, it is because light is _______.
A
absorbing
B
transmitting
C
refracting
D
reflecting
*select an answer for all questions
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