Calculating Speed

The video tutorial explains the concept of speed, using cars and a snail named Sammy as examples. It details how speed is calculated by dividing distance by time and compares different speeds. The tutorial also discusses various units for measuring speed, emphasizing that any combination of distance and time is acceptable depending on the context.

What is the primary factor that distinguishes a speeding car from a non-speeding car?

• The distance covered

• The type of fuel used

• The time taken to cover a distance

• The color of the car

What two pieces of information are needed to calculate speed?

• Distance and weight

• Speed and acceleration

• Distance and time

• Time and temperature

If Sammy the snail covers 10 meters in 5 seconds, what is her speed?

• 5 meters per second

• 10 meters per second

• 2 meters per second

• 1 meter per second

Why do scientists prefer using meters per second for measuring speed?

• It is the most useful unit for scientific calculations

• It is the most common unit

• It is the easiest unit to understand

• It is the fastest unit

Which unit might be more appropriate for measuring the movement of tectonic plates?

• Centimeters per year

• Inches per minute

• Kilometers per hour

• Meters per second