Forces/Motion Question Preview (ID: 37613)
Review Our Forces And Motion Unit.
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A position describes an objects location compared to
a) It's motion
b) A reference point
c) It's speed
d) A vector
Newton's second law states that to increase acceleration you
a) increase force
b) decrease force
c) increase mass
d) increase inertia
What units are used to measure force
a) kilograms
b) meters
c) newtons
d) seconds
An action force and its reaction force are
a) equal in size and direction
b) equal in size and opposite in direction
c) different in size but in the same direction
d) different in size and in direction
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) The box moves toward Solo
b) The box towards Charles
c) The box doesn't move
d) There is not enough information
If you balance a book on your head, you are not doing work on the book because
a) Doing work requires moving an object
b) You aren't applying any force to the book
c) The book is doing work on you
d) The book has potential energy
A ball kicked into the air will have the greatest potential energy
a) As it is being kicked
b) As it starts rising
c) At it's highest point
d) As it hits the ground
Esmeralda walked 2 km in half an hour. What was her average speed
a) 1 km/h
b) 2km/h
c) 4km/h
d) 6km/h
A vector is a quantity that has
a) speed
b) acceleration
c) size and direction
d) position and distance
Madisyn and Talia run with the same constant speed but in opposite directions. The girls have
a) the same position
b) different accelerations
c) different speeds
d) different velocities
Machines help you work by
a) decreasing the amount of work that must be done
b) changing the size and/or the direction of a force
c) decreasing friction
d) conserving energy
You can increase a machines efficiency by
a) increasing force
b) reducing work
c) increasing distance
d) reducing friction
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