Worksheetskinematics-free fall.2
Total questions: 8
Worksheet time: 12mins
Name
Class
Date
1.
A ball is dropped from a tall building, what is its velocity after 4 s?
a)
19.6 m/s
b)
39.2 m/s
c)
58.8 m/s
d)
78.4 m/s
2.
Why is the speed of objects increasing during free fall?
a)
They are getting heaver
b)
They are changing the shape
c)
The gravity is pulling them down
d)
There is no air resistance
3.
What is the velocity of an object that has been falling freely in a vacuum for 2 seconds?
a)
9.8 m/s down
b)
10.1 m/s down
c)
19.6 m/s down
d)
39.2 m/s down
4.
Objects with different masses have different gravitational force acting on them
a)
True
b)
False
5.
Which of the following correctly describes what happens during a free fall?
a)
Kinetic energy is converted to potential energy.
b)
Velocity is constant.
c)
Acceleration is constant.
d)
Acceleration increases with the fall.
6.
Adam finished 100 m race in a time of 8.7 s. What was his average speed?
a)
18.7 ms-1
b)
11.5 ms-1
c)
10.0 ms-1
d)
4.4 ms-1
7.
A ball is thrown upward in the air with an initial velocity of 40 m/s. How long does it take to reach back to the point it was thrown from?
a)
4.08 s
b)
6.02 s
c)
7.2 s
d)
8.16 s
8.
An object free falls for 3.5 seconds. How far does it fall?
a)
120.05 m
b)
60.03 m
c)
17.15 m
d)
34,3 m
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