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Energy Transfer Simple Machines
Test Description: Collisions, Energy Transfer, Simple Machines
Instructions: Answer all questions to get your test result.
1) The moment the bat touches the ball, energy from the moving bat is transferred to what?
A
The bat
B
The ball
C
The baseball player
D
The field
2) An encounter between two objects. After the encounter, there is a change in energy.
A
Energy
B
Friction
C
Transformation
D
Collision
3) The ability to do work.
A
Mass
B
Force
C
Energy
D
Friction
4) A push or a pull on an object.
A
Mass
B
Energy
C
Force
D
Friction
5) Energy cannot be created and it cannot be destroyed. It can only change from one form to another.
A
Laws of Energy Transfer
B
Universal Laws of Energy
C
Newton's Law
D
Law of Conservation of Energy
6) In a collision, some kinetic energy that is transferred is converted to heat and ________ energy.
A
electric
B
sound
C
light
7) A car traveling at a slow speed runs into a stopped car. A car moving at a fast speed runs into a stopped car. Which one would cause the most damage?
A
The fast-moving car would cause more damage
B
The slow moving car would cause more damage
C
The damage would be the same
8) If a 7 pound ball and a 1 pound ball are rolling along at the same speed, which ball has more kinetic energy?
A
There is not enough information to answer this question
B
The 7 pound ball
C
They have the same amount of kinetic energy
D
The 1 pound ball
9) If two basketballs are rolling at different speeds, does the faster one or the slower one have more kinetic energy?
A
Faster
B
Slower
C
There is not enough information to answer
D
They have the same kinetic energy
10) If you rub your hands together, why do they get warm?
A
Some of the kinetic energy is converted to light energy
B
Some of the kinetic energy is converted to heat energy
C
Some kinetic energy is converted to sound energy
D
Some of the kinetic energy is converted to electrical energy
11) During a collision, the speed and motion of each object changes.
A
True
B
False
12) What does it mean when we say energy is conserved during a collision?
A
Energy is lost by the system
B
Energy is created by the system
C
Energy is not created or destroyed
D
Energy is destroyed by the system
13) The movement of energy from one place to another. The type of energy does not change.
A
Energy being destroyed
B
Energy being created
C
Energy Transfer
D
Energy Transformation
14) At which point on a rollercoaster will there be the most kinetic energy?
A
At the top of the loop
B
The top of the largest hill
C
The bottom of the largest hill
D
The very end of the ride
15) An energy transfer occurs when
A
energy is destroyed
B
energy is created
C
energy changes into another type
D
energy moves from one place to another
16) Simple machines . . .
A
make work easier.
B
make work harder.
C
make work longer.
D
make more work.
17) There are ________ types of Simple Machines
A
4
B
2
C
6
D
8
18) What are some examples of simple machines?
A
a computer
B
a phone
C
water bottle
D
scissors
19) In science, when one object runs into another we call it a _____________.
A
hit
B
collision
C
strike
D
crash
20) To make a fair test or experiment you should change __________ variable(s) at a time.
A
1
B
3
C
4
D
2
*select an answer for all questions
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