Midterm Forces Review Question Preview (ID: 36423)
Force Questions To Review For Midterm.
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Resists changes in motion is called
a) Inertia
b) Mass
c) Gravity
d) Force
We need seat belts because when vehicles suddenly stop _____ causes us to continue forward.
a) centripetal force
b) gravity
c) inertia
d) mass
If the net force is zero an object can...
a) slow down
b) speed up
c) accelerate
d) move at constant velocity
True or false: acceleration requires a net force
a) true
b) false
c)
d)
As mass increases, acceleration ________
a) increases
b) decreases
c) stays the same
d) goes to zero
If you triple the mass you also triple the
a) acceleration
b) velocity
c) inertia
d) all of these
You apply the same force to both a soccer ball and a bowling ball. The bowling ball is 10 times as massive as the soccer ball. What can you say about the acceleration of the bowling ball compared to the soccer ball?
a) It is 1/10 that of the soccer ball
b) It is 10 times larger than the soccer ball
c) It will be the same as the soccer ball
d)
You are trying to move a boulder up a hill and push with all your might (300 N). Still, the boulder slowly rolls back down the hill. The force the boulder puts on you is...
a) less than 300N
b) more than 300N
c) 300N
d)
You drop an egg on the floor and it breaks. The force of impact is...
a) greater on the egg
b) greater on the floor
c) the same on both
d)
If you decrease the force on an object, the acceleration will _______
a) increase
b) decrease
c) stay the same
d)
An egg falls to the ground. The action force is the earth pulling the egg down. What is the reaction force?
a) air resistance on the egg
b) friction on the egg
c) the egg breaks
d) the egg pulling the earth up
A shopping cart is pulled with a net force of 2N. The cart will
a) accelerate constantly
b) move with a constant velocity
c) stay at rest
d) continue at constant speed, then slow down.
A falling object will
a) accelerate
b) slow down to a stop
c) move at constant speed
d)
An object moving at a constant velocity will have forces that
a) are all zero
b) are all in the same direction
c) are all not zero
d) add up to zero net
A shopping cart has an upward force of 12N, a downward force of 12N, a rightward force of 3N, and a leftward force of 13N. What is the net force?
a) zero
b) 16N left
c) 16N right
d) 10N left
If a net force acts to the right
a) the weight drops
b) the inertia drops
c) the motion stays the same
d) the object accelerates right
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