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WorksheetsFree Fall Concepts
Total questions: 10
Worksheet time: 6mins
When we say that light objects and heavy objects fall at the same rate, what assumption are we making?
They have the same shape.
They are falling in a vacuum
They are made of the same material.
They have the same size.
The moon is a nice place to study free-fall because it has no atmosphere. If an astronaut on the moon simultaneously drops a hammer and a feather from the same height, which one hits the ground first?
the hammer
the feather
They hit at the same time.
They don't fall.
The motion of a block sliding down a frictionless ramp can be described as motion with
a constant speed.
a constant acceleration greater than 10 m/s/s.
a constant acceleration less than 10 m/s/s.
a constant speed that depends on the steepness of the ramp.
If a ball is dropped from rest, it will fall 5 m during the first second. How far will it fall during the second second?
5 m
10 m
15 m
20 m
A ball with a mass of 0.5 kg is thrown vertically upward with a speed of 15 m/s. What are its speed and direction two seconds later?
10 m/s upward
5 m/s upward
zero
5 m/s downward
If we use plus and minus signs to indicate the directions of velocity and acceleration, in which of the following situations does the object speed up?
positive velocity and negative acceleration
negative velocity and positive acceleration
positive velocity and zero acceleration
negative velocity and negative acceleration
Suppose an object is in free fall. Each second the object falls
the same distance as in the second before.
a larger distance than in the second before.
with the same instantaneous speed.
with the same average speed.
Consider drops of water leaking from a water faucet. As the drops fall they
remain at a relatively fixed distance from each other.
get farther apart.
get closer together
A ball tossed vertically upward rises, reaches its highest point, and then falls back to its starting point. During this time the acceleration of the ball is always
in the direction of motion.
opposite its velocity.
directed downward.
directed upward.
The hang time (time one's feet are off the ground in a jump) for most athletes is
less than 1 second.
considerably more than 1 second.
about 1 second.
slightly more than 1 second.
