Understanding Motion: Velocity and Acceleration

What is the main difference between speed and velocity?

• Neither speed nor velocity include direction.

• Speed includes direction, velocity does not.

• Velocity includes direction, speed does not.

• Both speed and velocity include direction.

Which of the following is a vector quantity?

• Distance

• Energy

• Speed

• Displacement

How is a vector typically represented?

• As a number

• As a line

• As an arrow

• As a dot

What does a constant velocity look like on a velocity vs. time graph?

• A curved line

• A vertical line

• A horizontal line

• A diagonal line

What does a negative velocity indicate?

• The object is moving forwards.

• The object is speeding up.

• The object is moving backwards.

• The object is stationary.

What is acceleration?

• A change in speed over time

• A change in velocity over time

• A change in distance over time

• A change in direction over time

What type of graph represents a linear velocity relationship?

• A straight line

• A vertical line

• A horizontal line

• A curved line

What does a positive acceleration indicate when moving in the positive direction?

• The object is moving backwards.

• The object is stationary.

• The object is speeding up.

• The object is slowing down.

What happens when acceleration is in the opposite direction of motion?

• The object slows down.

• The object speeds up.

• The object remains at constant speed.

• The object changes direction.

What is centripetal acceleration?

• Acceleration due to friction

• Acceleration in circular motion

• Acceleration in a straight line

• Acceleration due to gravity