Knight's Physics Quiz

What is the formula for average velocity?

• v=td

• v=d⋅t

• v=dt

• v=d+t

If an object is moving with constant velocity, what can you conclude about its acceleration?

• Acceleration is zero.

• Acceleration is constant.

• Acceleration is increasing.

• Acceleration is decreasing.

Which of the following is a scalar quantity?

• Velocity

• Acceleration

• Speed

• Force

A ball is thrown horizontally from a height. As it falls, what happens to its horizontal velocity?

• Increases

• Decreases

• Remains constant

• Becomes zero

Which of the following is a vector quantity?

• Speed

• Distance

• Displacement

If the mass of one object is doubled in the gravitational force formula, what happens to the force?

• It is halved.

• It is doubled.*

• It remains the same.

• It is squared.

The gravitational force between two objects depends on:

• The distance between them squared.

• The product of their masses.

• Both A and B.

• Neither A nor B.

In uniform circular motion, the centripetal force is directed:

• Tangentially

• Towards the center

• Perpendicularly

• Oppositely

In uniform circular motion, if the speed of an object is doubled, what happens to the centripetal force needed to keep it in the circle?

• It is halved.

• It is doubled.

• It remains the same.

• It is quadrupled.

What is the relationship between displacement and distance in a circular path?

• Displacement is always greater than distance.

• Distance is always greater than displacement.

• Displacement and distance are always equal.

• Displacement is zero but distance is not.