KINEMATICS REVIEW LESSON

• Speed is a scalar quantity that tells how fast an object is moving.

• Distance is a scalar quantity that describes the magnitude between two positions.

• Time is change or the interval over which change occurs.

  • how long it takes

​SPEED , DISTANCE, TIME

Multiple Choice

What two measurements are necessary for calculating speed?

• Mass and time

• Temperature and mass

• Mass and distance

• Distance and time

Multiple Choice

What is the speed of an object that travels 60 meters in 4 seconds?

• 240 m/s

• 15 m/s

• 0.067 m/s

• 15 mph

Multiple Choice

Jose wandered 4 km at 2 km/hr. How long did Jose wander?

• 2 hours

• 8 hours

• 0.5 hours

• 2 km

Multiple Choice

How far does a lorry move if it is travelling at 12m/s for 180s?

• 2160 m

• 0.06 m

• 15 m

• 21.6 m

Multiple Choice

How long does it take a car to travel 40m at 12m/s?

• 4.8 s

• 480 s

• 3.33 s

• 33.3 s

• Acceleration is a vector quantity that describes the rate at which an object changes its velocity.

• Velocity is a vector quantity that describes the rate of an object changing its position.

  • magnitude 10m & direction North, West, East, South, Left, Right

​

​ACCELERATION & VELOCITY

Multiple Choice

A cheetah travels 75 m in 3 s. What is her velocity over the interval?

• 225 m/s

• 25 m/s 

• 0.04 m/s

Multiple Choice

What is the average velocity of the object between 0 and 10 seconds?

• 6.0 m/s

• 1.5 m/s

• -4 m/s

• 0 m/s

Multiple Choice

What is velocity?

• the quickness of an object

• the location of an object

• acceleration

• speed in a specific direction

Multiple Choice

A negative acceleration means that your object is  

• constant

• speeding up

• at rest

• slowing down

Multiple Choice

A bus starts from rest and accelerates to 14 m/s in 4 s. What is the average acceleration of the bus?

• 3.5 m/s2

• 5.9 m/s2

• 10.5 m/s2

• 24 m/s2

Multiple Choice

A box sliding down an inclined plane attains a speed of 27 m/s in 3 seconds from rest.  Find the acceleration.

• 30 m/s

• 24 m/s²

• 9 m/s²

• 81 km/hr

Multiple Choice

A roller coasters accelerates from an initial speed of of 6.0 m/s to a final speed of 70 m/s over 4 seconds.  What's the acceleration?

• 24 m/s²

• 18 m/s²

• 16 m/s²

• 16 m/s

Multiple Choice

the difference between two times

• measurement

• distance

• position

• time interval

• Constant Velocity

  • object moving at the same rate (constant)

• Positive Velocity

  • object moving fast and forward towards the right

• Negative Velocity

  • object moving slow and backwards towards the left

POSITION TIME GRAPHS

Multiple Choice

Which graph represents zero acceleration (constant velocity)?

• A

• B

• C

• D

Multiple Choice

Describe the motion of an object given by this Position-time graph.

• not moving then moving backward

• moving forward then not moving

• moving backward then not moving

• moving forward then backward

Multiple Choice

Select the description of motion from A - B.

• Slowing down away from the origin

• Speeding up away from the origin

• Constant velocity away from the origin

• Constant velocity towards the origin

Multiple Choice

True or False: this graph shows several segments ALL with constant velocity.

• True

• False