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WorksheetsFree Fall & Circular Motion
Total questions: 10
Worksheet time: 5mins
What is the formula for finding centripetal force?
m1v1+m2v2=m2u2+m1u1
p=mV
F=mv2/r
F=ma
Fluid friction acts with gravity, increasing acceleration during free fall.
True
False
The SI unit for friction is ____
Newtons
m/s
kg
grams
Centripetal force is a force that causes an object to move in a (a) path.
In free fall near the surface of the Earth, the acceleration due to gravity without external forces is approximately
10 m/s^2
9.8 m/s^2
1 m/s^2
12 m/s^2
When an object is trapped between falling and flying out in space it is in (a) .
Which of the following is not true about gravity?
Gravity causes attraction between all objects that have mass
Gravity causes objects to accelerate
Gravity acts everywhere in the universe
Gravity causes objects to stay midair
Without centripetal force, objects will move in a straight line.
True
False
What is free fall?
Motion when acceleration is caused by gravity
Object falling at a non-constant speed
With external forces, the acceleration of free fall is 9.8 m/s^2
Free fall happens without gravity
In circular motion, what force is responsible for keeping an object in its curved path?
Tension force
Centripetal force
Frictional force
Gravitational force
