Understanding Speed and Measurement

What does speed measure?

• The distance an object travels

• The time an object travels

• The distance an object travels in a certain amount of time

• The force applied to an object

Which formula correctly calculates speed?

• Speed = Time / Distance

• Speed = Distance x Time

• Speed = Distance / Time

• Speed = Force / Time

What are common units for measuring speed?

• Meters and seconds

• Kilometers and hours

• Meters per second and kilometers per hour

• Meters per hour and kilometers per second

Why is it difficult to compare speeds if one is in meters per second (m/s) and the other is in kilometers per hour (km/hr)?

• One speed is for a person and the other is for a vehicle

• The units of measurement are different

• One is a sprint and the other is a long distance

• The objects are moving in different directions

A car travels at a speed of 50 km/hr for 3 hours. How far did the car travel?

• 50 km

• 3 km

• 150 km

• 16.6 km