Force and Translational Dynamics
A car is moving at a constant speed around a circular track. What is the direction of the car's centripetal acceleration?
Tangent to the circle
Radially inward
Radially outward
Zero
An object moves in a circle of radius with a constant speed . What is the centripetal acceleration?
A 1000 kg car travels around a flat circular track with a radius of 200 m at a speed of 20 m/s. What is the net force acting on the car?
500 N
1000 N
2000 N
4000 N
A conical pendulum consists of a mass attached to a string of length , swinging in a horizontal circle. Which force provides the centripetal force?
Gravity
Tension
Vertical component of tension
Horizontal component of tension
An object is moving in a circle with both centripetal and tangential acceleration. What is the direction of the net acceleration?
Towards the center of the circle
Tangent to the circle
At an angle to the circular path
Opposite to the direction of motion
A wheel completes 10 revolutions in 2 seconds. What is its frequency?
2 Hz
5 Hz
10 Hz
20 Hz
According to Kepler's Third Law, how does the orbital period of a satellite relate to its orbital radius?
Period is proportional to the radius
Period is proportional to the square of the radius
The square of the period is proportional to the cube of the radius
The cube of the period is proportional to the square of the radius

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A car is making a turn on a flat road. What force provides the centripetal acceleration?
Tension
Gravity
Friction
Normal Force
A record player spins at 33.3 revolutions per minute. What is the period of its rotation?
33.3 s
1.8 s
0.03 s
60 s
A satellite orbits a planet with a period and orbital radius . If the orbital radius is increased to 4R
, what is the new period?
2T
4T
8T
16T