Circular and Satellite Motion Quiz

What are the three primary quantities of interest in circular motion problems?

• Speed, distance, and time

• Force, energy, and momentum

• Speed, acceleration, and net force

• Acceleration, velocity, and mass

How is speed calculated in circular motion when the period is known?

• Speed = 2πr / T

• Speed = r / T

• Speed = 2πr * T

• Speed = r * T

If the frequency of revolution is given, which formula is used to calculate speed?

• v = f / 2πr

• v = 2πf / r

• v = 2πr / f

• v = f * 2πr

What is the relationship between acceleration and speed in circular motion?

• Acceleration is inversely proportional to speed

• Acceleration is inversely proportional to the square of speed

• Acceleration is directly proportional to speed

• Acceleration is directly proportional to the square of speed

How does doubling the radius affect the acceleration in circular motion?

• Acceleration halves

• Acceleration doubles

• Acceleration remains the same

• Acceleration quadruples

If the mass of an object is tripled, how does it affect the net force in circular motion?

• Net force is halved

• Net force is tripled

• Net force is unchanged

• Net force is quadrupled

In the example of a car rounding a corner, what happens to the acceleration if the speed is doubled?

• Acceleration remains the same

• Acceleration quadruples

• Acceleration halves

• Acceleration doubles

What is the net force on a 920 kg car moving at 16 m/s around a circle with a radius of 32 meters?

• 6,400 N

• 9,200 N

• 8,000 N

• 7,400 N

How is the period calculated if a halfback makes a quarter turn in 2.1 seconds?

• Period = 6.3 seconds

• Period = 4.2 seconds

• Period = 2.1 seconds

• Period = 8.4 seconds

What is the acceleration of a halfback making a quarter turn with a radius of 12 meters in 2.1 seconds?

• 8.0 m/s²

• 7.4 m/s²

• 5.9 m/s²

• 6.7 m/s²