# Physics (Chps. 6-8): Question Preview (ID: 8238)

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If you double mass, acceleration would
a) double
b) be cut in half
c) triple
d) not change

True or False: Whenever one object exerts a force on another object, the 2nd object always exerts a force back on the first object.
a) True
b) False
c)
d)

Which of the following is the formula used to express Newton's 2nd Law of Motion?
a) F = ma
b) a = mf
c) m = fa
d) F= a/f

Defined as the force exerted on an object times the time over which that force is applied
a) impulse
b) momentum
c) force
d) pressure

A girl pulls on a 10 kg wagon with a constant force of 20 N. What is the wagon's acceleration?
a) 0.5 m/s^2
b) 2 m/s^2
c) 200 m/s^2
d) 20 m/s^2

Forces always occur
a) as single quantities
b) by themselves
c) in pairs
d) in triplets

Which of the following would exert the most pressure on the ground?
a) A woman standing in running shoes
b) A woman standing on skis
c) A woman standing in high heels
d) A woman sitting down

Pressure is defined as
a) time per area
b) velocity per time
c) force per area
d) force per time

If the force acting on a cart doubles, what happens to the cart's acceleration?
a) It doubles.
b) It is cut in half.
c) It is cut in 1/4.