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2nd Semester Review Pt3
Test Description: Review
Instructions: Answer all questions to get your test result.
1) Two or more simple machines that work together
A
compound machine
B
lever
C
wheel and axle
D
pulley
2) The unit for power
A
second
B
joule
C
Watt
D
MA
3) A swinging pendulum has the least potential energy when it is
A
3/4 of the way up
B
halfway between the top and bottom
C
at the bottom of the swing
D
at its highest point
4) Which does not represent work in the scientific sense
A
throwing a rock
B
holding a rock
C
dropping a rock
D
lifting a rock
5) E=MC2 shows
A
speed of light depends on mass
B
mass and energy can be converted into one another
C
mass and energy are very different and cannot be converted into each other
D
mass is the same not matter where it is
6) Energy being stored in an object due to its position
A
kinetic energy
B
nuclear energy
C
potential energy
D
motion
7) an example of Kinetic energy being converted to potential and back is
A
rock sitting on a hill
B
boy jumping on a trampoline
C
suspension bridge
D
moving train
8) Energy of motion
A
kinetic
B
electromagnetic
C
chemical
D
potential
9) the fixed point of a lever
A
fulcrud
B
resistance arm
C
fulcrum
D
effort arm
10) An incident wave strikes a mirror at an angle of 33 degrees what is the angle of reflection
A
33
B
15
C
40
D
66
*select an answer for all questions
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