Centripetal Force and Circular Motion Quiz

What is the equation for centripetal force?

• F = m * r / v^2

• F = m * r^2 / v

• F = m * v^2 / r

• F = m * v / r

What happens to the mass when the centripetal force is not acting?

• It remains suspended in the air.

• It moves in a circular path.

• It drops to the floor.

• It moves upwards.

Why is it important to measure multiple time periods in the experiment?

• To increase the time period.

• To make the experiment more complex.

• To increase the reaction time.

• To reduce the percentage uncertainty.

Which instrument is used to measure the radius in the experiment?

• Stopwatch

• Thermometer

• Ruler

• Protractor

How is the speed of the bunk calculated?

• v = 2πr / T

• v = r / 2πT

• v = 2πT / r

• v = T / 2πr

What is the purpose of adding more mass in the experiment?

• To balance the centripetal force

• To observe the effect on v squared

• To decrease the speed

• To increase the radius

What is the expected shape of the graph when plotting force against velocity squared?

• A parabola

• A circle

• A straight line through the origin

• A hyperbola

What does the gradient of the graph represent in the context of the experiment?

• The mass of the object

• The centripetal force

• The radius of the circle

• The mass divided by the radius

What is the relationship between force and velocity squared in the experiment?

• They are directly proportional

• They are inversely proportional

• They are unrelated

• They are equal

What is the significance of the graph passing through the origin?

• It shows an error in the experiment.

• It confirms the direct proportionality.

• It suggests a non-linear relationship.

• It indicates a constant force.