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Forces And Energy
Test Description: Forces change the position or motion of an object. Forms of energy.
Instructions: Answer all questions to get your test result.
1) Objects can have many different kinds of energy. Which of these forms of energy does lightning NOT have?
A
heat energy
B
solar energy
C
electrical energy
D
light energy
2) What must happen in order for you to hear drums?
A
Molecules in the air must vibrate.
B
Your ears must be perfectly still.
C
Light waves must bounce off drums.
D
The ground must be perfectly flat.
3) Which of these gives off the MOST heat energy, light energy, and solar energy?
A
Lamp
B
Stove
C
Sun
D
Moon
4) Which event must happen in order for any type of sound to be produced?
A
Electrons must flow.
B
Matter must vibrate.
C
Light waves must be absorbed.
D
Heat must be radiated.
5) When water in the oceans heats up, some of it evaporates. Which of these happens next?
A
Water precipitates as rain or snow.
B
Water flows down rivers.
C
Water seeps into the ground.
D
Water condenses to form clouds.
6) What is refraction?
A
Vibration of particles.
B
Light being absorbed.
C
Light bouncing off of an object.
D
Bending of light.
7) Eyeglasses correct vision problems because they are made of ---
A
lenses that bend the light.
B
mirrors that reflect the light.
C
mirrors that bend the light.
D
lenses that reflect the light.
8) Plucking the strings of a harp produces sound because it causes the strings to ----
A
vibrate
B
shorten
C
strike one another.
D
become longer.
9) The formation of winds on Earth's surface is most influenced by ---
A
the sun
B
the moon
C
comets
D
asteroids
10) What force can cause a mud slide?
A
Electricity
B
Inertia
C
Gravity
D
Friction
*select an answer for all questions
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