Exploring Motion and Its Key Concepts

What is the speed of a pencil relative to the floor of a bus if the bus is moving at 100 km/h?

• 100 km/h

• 50 km/h

• 0 km/h

• 200 km/h

If a student walks 4 meters east, 2 meters south, 4 meters west, and 2 meters north, what is their displacement?

• 12 meters

• 8 meters

• 6 meters

• 0 meters

Which of the following is a scalar quantity?

• Displacement

• Velocity

• Speed

• Acceleration

What is the unit for speed?

• Miles per hour

• Meters per second

• Meters per second squared

• Kilometers per hour

Tags

NGSS.MS-PS3-1

What does a speedometer in a car measure?

• Velocity

• Instantaneous speed

• Average speed

• Acceleration

If a car travels 400 meters in 20 seconds, what is its average speed?

• 10 meters per second

• 15 meters per second

• 25 meters per second

• 20 meters per second

Tags

NGSS.MS-PS3-1

What happens to the velocity of an object if either its speed or direction changes?

• It decreases

• It remains the same

• It changes

• It increases

Tags

NGSS.MS-PS3-1

What is acceleration defined as?

• The time taken for an object to stop

• The speed of an object in a given direction

• The distance an object travels

• The rate at which an object changes its speed

Tags

NGSS.MS-PS2-2

What is the unit for acceleration?

• Kilometers per hour

• Miles per hour

• Meters per second squared

• Meters per second

If a car is moving at a constant speed on a circular track, why is its velocity changing?

• Because its speed is changing

• Because its direction is changing

• Because it is decelerating

• Because it is accelerating