Speed, Velocity & Acceleration

88 m/s

• Speed
• Velocity
• Acceleration

88 m/s north

• Speed
• Velocity
• Acceleration

This occurs when an object speeds up, slows down, or changes direction.

• Speed

• Velocity

• Acceleration

You ride your bike around the block at a constant speed of 11 km/h.

• Acceleration occurred because speed increased.
• Acceleration occurred because speed decreased.
• Acceleration occurred because you changed directions.

A train travels 90 km in an hour

• Speed
• Velocity
• Acceleration

Changing the speed and changing the direction of your bicycle are both examples of acceleration.

• TRUE
• FALSE

Which of the following is NOT an example of acceleration?

• a person jogging at 3 m/s along a winding path
• a car stopping at a stop sign
• a cheetah running 27 m/s east
• a plane taking off

What two thiings must you know to determine speed?

• distance and direction
• direction and time
• speed and direction
• time and distance

Which of the following is a measurement of velocity?

• 16 m east
• 25 m/s2
• 55 m/h south
• 60 km/h

1. Which of the following statements about speed and velocity is correct?

• Velocity only describes an object’s rate of motion.
• Speed describes how an object is changing its velocity.
• Speed and velocity both describe how an object is speeding up.
• Only velocity includes the direction an object is traveling.