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Midterm Review-Part 2-2014-15
Test Description: 8th grade
Instructions: Answer all questions to get your test result.
1) Trees transform energy for photosynthesis with
A
light energy to chemical energy
B
electrical energy to light energy
2) To calculate acceleration
A
Change in time for distance traveled
B
change in velocity divided by time
3) When elements react to form a compound
A
Their properties change.
B
Their mass increases.
4) If you have a box of confetti and an equal-sized box of rocks, what do you know about their mass?
A
The mass of the rocks is greater than the mass of the confetti
B
The masses are unknown.
5) Boy 1 is standing on a step that is 1 foot tall. Boy 2 is standing on a step that is 2 feet high.
A
Boy 2 has twice as much potential energy as Boy 1
B
. Boy 2 has half as much kinetic energy as Boy 1
6) When dropping a rock from 2 different heights, what stays the same 2 feet before hitting the ground?
A
Speed and velocity
B
Direction and position
7) If pushing a box, it will continue to move at the same _____and ______unless it is acted upon by _____________force,
A
speed/direction/ an unbalanced
B
acceleration/motion/a balanced
8) If you push a box on the left side, which way will it move?
A
To the left
B
To the right
9) If student A pushes the box to the right with 200N of force, and student B pushes the box 100N to the left, which way wll thwe box move?
A
To the left
B
To the right
C
Doesn't move
10) Why does the box move?
A
The box has a balanced force acting upon it.
B
The box has an unbalanced force acting upon it.
C
Gravity is acting upon it.
*select an answer for all questions
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