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WorksheetsCircular Motion
Total questions: 15
Worksheet time: 18mins
A pilot experiences centripetal acceleration of 2g's (2 x 9.8 m/s2) while maneuvering a loop at a speed of 400 m/s. What is the radius of the loop?
203 m
8163 m
80,003 m
23 m
A satellite of mass m and speed v orbits the Earth at a distance r from the center of the Earth. The gravitational acceleration due to the Earth at the satellite is equal to.
v/r
v2/r
mv/r
mv2/r
Centripetal force is...
the inward force acting on a body moving at constant speed in a circle
the outwards force acting on a body moving at constant speed in a circle
A ball is moving at constant speed around the circle. Which letter represents the acceleration of the ball?
A
B
C
D
Nonsense. The ball can't be accelerating while moving at a constant speed.
Why do objects experience centripetal acceleration even though they can have a constant speed?
Because they are speeding up as they move in a circle
Because they are constantly changing direction and hence, velocity changes, and that net change is directed inward.
Because they are constantly changing both speed and direction
Because when you have 100 people pedaling, you can speed up more easily.
The linear velocity is always _____ to the line of a circle.
outwards
towards the center
tangent
faster
