Measuring Motion: Reference Points, Speed, and Velocity

What is used to determine if an object is in motion?

• Distance

• Gravity

• Reference points

• Speedometer

Why don't we feel the Earth's rotation?

• Because the Earth is moving too slowly

• Because of gravity and everything around us moving at the same speed

• Because the Earth is too big

• Because we are sitting down

What two factors are needed to calculate speed?

• Speed and direction

• Distance and time

• Time and acceleration

• Distance and velocity

Which unit is commonly used to measure speed in the metric system?

• Inches per minute

• Meters per second

• Feet per second

• Miles per hour

Tags

NGSS.MS-PS3-1

How is average speed calculated?

• Distance divided by speed

• Total distance divided by total time

• Total time divided by total distance

• Speed divided by time

What does a steep slope on a distance-time graph indicate?

• Slow speed

• No movement

• Constant speed

• Fast speed

What does a plateau on a distance-time graph represent?

• No movement

• Decreasing speed

• Increasing speed

• Constant speed

What is instantaneous speed?

• The speed at a specific moment in time

• The average speed over a journey

• The speed of light

• The speed of the Earth's rotation

In the tortoise and hare race, what was the hare's main challenge?

• Maintaining a constant speed

• Overcoming obstacles

• Maintaining a high average speed

• Running in a straight line

What is velocity?

• Speed without direction

• Speed in a given direction

• Time divided by distance

• Distance divided by time