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Free-Fall Acceleration

Total questions: 10

Worksheet time: 10mins

Name
Class
Date
1.

In Newtonian physics, ________________ is any motion of a body where gravity is the only force acting upon it.

a)

kinematics

b)

free fall

c)

mechanics

d)

velocity

2.

The standard acceleration due to gravity (or standard acceleration of free fall),is the nominal gravitational acceleration of an object in a vacuum near the surface of the Earth. It is defined by standard as:

a)

9.8 m/s.

b)

9.8 m.

c)

9.8 m/s2.

d)

9.8 s.

3.

Free fall takes into consideration the frictional force of air resistance.

a)

True

b)

False

4.

If an object is in free fall for three seconds, how fast will it be falling?

a)

9.8 m/s

b)

19.6 m/s

c)

29.4 m/s

d)

39.2 m/s

5.

If an object is free falling onto the Moon, which of the following would be correct?

a)

It would accelerate at 9.8 m/s2

b)

It would not encounter any air resistance.

c)

It would not fall because the Moon has no gravity.

d)

It would impact the surface and bounce back into space.

6.

Heavier objects free fall faster than lighter objects.

a)

True

b)

False

7.
Which would hit the ground first if dropped from the same height in a vacuum—a feather or a metal bolt?
a)
the feather
b)
the metal bolt
c)
They would hit the ground at the same time.
d)
They would be suspended in a vacuum.
8.
A pumpkin is dropped from a 35 m building. What is its initial velocity (vi)?
a)
9.8 m/s2
b)
35 m
c)
0 m/s
d)
9.8 m/s
9.
If the mass on Mars is 6.4 kg x 1023 kg and the mass on Earth is 6.0 kg x 1024 kg, which one would you weigh more on?
a)
Earth
b)
Mars
10.
What does this graph represent?
a)
Constant Speed
b)
Acceleration
c)
Not moving