Speed Quiz

What is the formula for calculating average speed?

• average speed = total distance + total time

• average speed = total distance / total time

• average speed = total distance * total time

• average speed = total distance - total time

A car travels a distance of 200 meters in 20 seconds. What is its average speed?

• 15 meters per second

• 10 meters per second

• 5 meters per second

• 20 meters per second

A cyclist covers a distance of 15 kilometers in 1 hour. What is the average speed of the cyclist?

• 15 kilometers per hour

• 1 kilometer per hour

• 10 kilometers per hour

• 30 kilometers per hour

What does the slope of a speed-time graph represent?

• acceleration

• time

• distance

• velocity

If the slope of a speed-time graph is positive, what does it indicate about the object's motion?

• The object is decelerating or decreasing speed.

• The object is at rest.

• The object is moving at a constant speed.

• The object is accelerating or increasing speed.

If the slope of a speed-time graph is zero, what does it indicate about the object's motion?

• The object is moving with increasing velocity.

• The object is not moving at all.

• The object is moving at a constant velocity.

• The object is moving with decreasing velocity.

If the slope of a speed-time graph is negative, what does it indicate about the object's motion?

• The object is moving at a constant speed.

• The object is accelerating in the opposite direction.

• The object is stationary.

• The object is moving in the opposite direction of the positive axis or slowing down.

What does a horizontal line on a speed-time graph represent?

• acceleration

• deceleration

• no motion

• constant speed

What does a vertical line on a speed-time graph represent?

• The object is moving in the opposite direction.

• The object is accelerating.

• The object is moving at a constant speed.

• The object is at rest or not moving.

A runner starts from rest and accelerates uniformly. The speed-time graph for the runner is a straight line. What does the slope of the graph represent?

• Acceleration

• Time

• Distance

• Velocity