Physics_A_071725

Which of the following best describes the difference between distance and displacement?

• Distance is a vector; displacement is a scalar.

• Distance is the shortest path; displacement is the total path.

• Distance is the total path length; displacement is the straight-line change in position.

• Distance and displacement are always equal.

Which of the following is a correct unit for velocity?

What is the acceleration of an object in freefall (ignoring air resistance)?

Which of the following statements about speed and velocity is true?

• Speed has direction, velocity does not.

• Speed and velocity are always the same.

• Velocity has direction, speed does not.

• Both speed and velocity are vectors.

If a person measures the motion of a falling object from a moving train, what concept is being used?

• Displacement

• Frame of reference

• Acceleration

• Freefall

Which graph best represents the velocity of an object in freefall (ignoring air resistance)?

• A horizontal line

• A straight line with positive slope

• A straight line with negative slope

• A curve opening upward