Speed and Velocity

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

Velocity has both ____ and _____.

• speed , direction

• direction, mass

• volume, density

• numbers, direction

Which of the following represents a velocity?

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

What is the speed of a cheetah that travels 112.0 m in 4.00 s?

• 0.0357 m/s

• 112 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.

How do you calculate velocity?

• Distance divided by time.
• Displacement divided by time.
• Speed multiplied by time.
• Displacement divided by velocity.

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

If a space shuttle orbits Earth once, what is the shuttle’s distance traveled and displacement?

• Distance and displacement both are zero.

• Distance is the circumference of the circular orbit while displacement is zero.

• Distance is zero while the displacement is the circumference of the circular orbit.

• Distance and displacement both are equal to the circumference of the circular orbit.

Four bicyclists travel different distances within certain time periods along a straight path. Find out the cyclist who traveled with the greatest average speed.

• Cyclist 1 travels 95 m in 27 s

• Cyclist 2 travels 87 m in 22 s

• Cyclist 3 travels 106 m in 26 s

• Cyclist 4 travels 108 m 24 s

Speed is equal to 

• Distance/Time
• Time/Distance
• Time x Distance
• Acceleration