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Acceleration is defined as the CHANGE in

• distance divided by the time interval

• time it takes for one place to move to another place.

• velocity divided by the time interval

• velocity of an object.

Tags

NGSS.HS-PS2-1

Acceleration can be defined as _______________

• changing directions

• slowing down

• speeding up

• all of the above

Distance and direction of an object's change in position from a starting point

• displacement

• distance

• motion

• reference point

A car drives 84 meters forward. It's displacement and distance would be the same.

• True

• False

Changes in our speed, direction or both are called _________.

• acceleration

• changes

• displacement

• gravity

A negative acceleration means that your object is _____.

• not accelerating

• not moving

• slowing down

• speeding up

Horizontal line on a Position Time graph indicate that the object is

• at rest

• moving at a constant speed

• slowing down

• speeding up

What does this graph represent?

• acceleration

• constant speed

• not moving

This graph shows the motion of a cheetah, a human, and a pig. Which statement describes their movement?

• The pig is traveling at a faster speed because it reached 500 meters in a shorter amount of time.

• The cheetah, human, and pig all traveled at the same speed because

  they all reached 500 meters.

• The human is traveling at a faster speed because it reached 500

  meters in a shorter amount of time.

• The cheetah is traveling at a faster speed because it reached 500

  meters in a shorter amount of time.

Tags

NGSS.MS-PS3-1

The graph shows the speed of runners during a race. How can the movement of the runners be accurately compared?

• The red runner had a faster start than the green runner.

• The red runner ran at constant speed for a longer duration than the

  green runner.

• The red runner stopped running for a longer duration of time than the

  green runner.

• The red runner had more changes in speed than the green runner in

  the first 45 seconds.

Tags

NGSS.MS-PS3-1