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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
pulley
B
lever
C
compound machine
D
wheel and axle
2) The unit for power
A
Watt
B
MA
C
joule
D
second
3) A swinging pendulum has the least potential energy when it is
A
at its highest point
B
at the bottom of the swing
C
halfway between the top and bottom
D
3/4 of the way up
4) Which does not represent work in the scientific sense
A
holding a rock
B
lifting a rock
C
throwing a rock
D
dropping a rock
5) E=MC2 shows
A
mass and energy can be converted into one another
B
mass is the same not matter where it is
C
mass and energy are very different and cannot be converted into each other
D
speed of light depends on mass
6) Energy being stored in an object due to its position
A
motion
B
potential energy
C
nuclear energy
D
kinetic energy
7) an example of Kinetic energy being converted to potential and back is
A
suspension bridge
B
moving train
C
rock sitting on a hill
D
boy jumping on a trampoline
8) Energy of motion
A
electromagnetic
B
chemical
C
potential
D
kinetic
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
66
D
40
*select an answer for all questions
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