Speed, Velocity, and Acceleration

What type of quantity is speed?

• Scalar

• Vector

What is the formula for speed?

• s = d / t

• s = t / d

• s = d * t

• s = t * d

What is the difference between speed and velocity?

• Speed is a scalar quantity with no direction, while velocity is a vector quantity with direction.

• Speed is a vector quantity with direction, while velocity is a scalar quantity with no direction.

• Speed and velocity are both scalar quantities with no direction.

• Speed and velocity are both vector quantities with direction.

If an object travels in one direction and ends up back at the same point, what is the displacement?

• Displacement is zero.

• Displacement is equal to the distance traveled.

• Displacement is half the distance traveled.

• Displacement is twice the distance traveled.

What does the gradient show in a distance-time graph?

• Velocity (displacement/time)

• Acceleration (velocity/time)

• Distance (time/velocity)

• Time (distance/velocity)

In a distance-time graph, what does a horizontal line indicate?

• The object is stationary.

• The object is moving at a constant speed.

• The object is accelerating.

• The object is decelerating.

What does a negative gradient indicate in a velocity-time graph?

• The object is decelerating.

• The object is accelerating.

• The object is moving at a constant speed.

• The object is stationary.

In a velocity-time graph, what does a horizontal line indicate?

• The object is moving at a constant speed.

• The object is accelerating.

• The object is decelerating.

• The object is at rest.

What is the area under the curve in a velocity-time graph used to calculate?

• The speed of the object

• The distance travelled over a given time period

• The acceleration of the object

• The time taken to travel a distance

The thinking distance is the distance travelled ______ the driver reacts.

• before

• after

• while

• as soon as