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Forces/Motion
Test Description: Review our forces and motion unit.
Instructions: Answer all questions to get your test result.
1) A position describes an objects location compared to
A
It's speed
B
It's motion
C
A reference point
D
A vector
2) Newton's second law states that to increase acceleration you
A
increase force
B
decrease force
C
increase mass
D
increase inertia
3) What units are used to measure force
A
newtons
B
seconds
C
meters
D
kilograms
4) An action force and its reaction force are
A
different in size but in the same direction
B
equal in size and direction
C
equal in size and opposite in direction
D
different in size and in direction
5) Solo pulls a box with a force of 4N and Charles pulls the box from the opposite side with a force of 3N. Which of the following is true?
A
There is not enough information
B
The box moves toward Solo
C
The box towards Charles
D
The box doesn't move
6) If you balance a book on your head, you are not doing work on the book because
A
The book is doing work on you
B
You aren't applying any force to the book
C
Doing work requires moving an object
D
The book has potential energy
7) A ball kicked into the air will have the greatest potential energy
A
At it's highest point
B
As it is being kicked
C
As it hits the ground
D
As it starts rising
8) Esmeralda walked 2 km in half an hour. What was her average speed
A
4km/h
B
2km/h
C
1 km/h
D
6km/h
9) A vector is a quantity that has
A
acceleration
B
speed
C
position and distance
D
size and direction
10) Madisyn and Talia run with the same constant speed but in opposite directions. The girls have
A
different velocities
B
different speeds
C
the same position
D
different accelerations
11) Machines help you work by
A
conserving energy
B
changing the size and/or the direction of a force
C
decreasing friction
D
decreasing the amount of work that must be done
12) You can increase a machines efficiency by
A
increasing distance
B
increasing force
C
reducing friction
D
reducing work
*select an answer for all questions
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