Motion -Speed and velocity

What is speed?

• how far you go
• how much distance is covered over a period of time
• how fast you accelerate
• the change in the location of a object

A runner races in the 100 meter dash.  It takes her 10 seconds to finish.  What is her average speed?

• 10 m/s
• 1000 m/s
• 100 seconds
• 10 seconds

Total distance divided by total time is

• average speed
• constant speed
• instantaneous speed
• acceleration

Velocity is both ____ and _____. 

• speed , direction 
• direction, mass
• volume, density 
• direction, magnitude 

Which of the following represents a velocity?

• 40 m
• 40 m north
• 40 m/s
• 40 m/s north

When you look at the speedometer of your car, it tells you your....

• Average speed
• Instantaneous speed

What is the speed of a cheetah that travels 112.0 m in 4.0 s?

• 0.0357 m/s
• 28 m/s
• 0.036 m/s
• 28.0 m/s

Two horses are running in a field.  The gray horse runs 12 m/s north.  The black horse runs 12 m/s east.  
Which is true about their motions?

• Equal speeds.
• Equal velocities.
• Equal distances.
• Equal displacements.

A car moves a distance of 1000 m with an average speed of 28 m/s.   Calculate the time.

• 36 seconds
• 28,000 seconds
• 28 seconds
• 972 seconds

What is the formula to calculate speed?

• S = t/d
• S = d/t
• S = d x t
• S = t x d