WorksheetsFree fall motion
Total questions: 10
Worksheet time: 12mins
Free fall is any motion of a body where ____ is the only force acting upon it.
body attraction
tension
gravity
velocity
TRUE or FALSE:
An object that is free-falling is acted upon by the force of gravity alone.
TRUE
FALSE
TRUE or FALSE:
A ball is thrown upwards and is rising towards its peak. As it rises upwards, it is NOT considered to be in a state of free fall.
TRUE
FALSE
TRUE or FALSE:
An object in free fall experiences an acceleration which is independent of the mass of the object.
TRUE
FALSE
TRUE or FALSE:
A ball is thrown upwards, rises to its peak and eventually falls back to the original height. As the ball rises, its acceleration is upwards; as it falls, its acceleration is downwards.
TRUE
FALSE
TRUE or FALSE:
A ball is thrown upwards, rises to its peak and eventually falls back to the original height. The speed at which it is launched equals the speed at which it lands. (Assume negligible air resistance.)
TRUE
FALSE
Two rocks with different size and mass are dropped from the same height. Which of the rock will reach the ground first?
greater rock
smaller rock
both reach the ground at the same time
If an object is in free fall for 3 seconds, how fast will it be falling at the end of its motion?
-9.8 m/s
-19.6 m/s
-29.4 m/s
-39.2 m/s
A pumpkin is dropped from a 35 m building. What is its initial velocity, u?
9.8 m/s^2
35 m
0 m/s
9.8 m/s
You drop your cell phone while in the bathroom in front of the mirror while the water is running in the sink below. If you are 0.45 meters above the sink, how long do you have before your cell phone is a gonner.
0.09s
0.03s
0.3s
0.9s
