Acceleration

Danica gets her car to go from a speed of 100 mi/hr to a speed of 150 mi/hr in 5 seconds. What is her acceleration?

• 10 mi/hr/sec

• - 5 mi/hr/sec

• 50 mi/hr/sec

• -25 m/hr/sec

Which of the following is an example of acceleration?

• a motorcycle going around a curve
• a ball on the ground
• a boat sailing east at 15 miles per hour on calm water.
• a jet flying 300 miles per hour on a straight horizontal path

Which of the following is NOT an example of acceleration?

• a car on cruise control on a straight flat highway
• the Moon orbiting Earth
• a car coming to a stop
• a ball rolling down a ramp

Tags

NGSS.MS-PS2-2

Which of the following cannot be shown on a speed-time graph?

• an object changing its direction.

• an object changing its speed

• an object moving at a constant speed

• an object that is not moving

A change in speed or direction is known as _____.

• acceleration
• speed
• velocity
• displacement

Both graphs represent the same object. What can be said about its motion?

• it is speeding up

• its direction is changing

• it is moving at constant speed

• it is slowing down

Tags

NGSS.MS-PS3-1

Both graphs represent the same object. What can be said about its motion?

• its speed is constant

• its speed is increasing

• it is accelerating

• its direction is changing

Tags

NGSS.MS-PS3-1

Both graphs represent the same object. What can be said about its motion?

• it is not moving

• it is moving forward

• its acceleration is negative

• it average speed is different than its constant speed

Tags

NGSS.MS-PS3-1

Both graphs represent the same object. What can be said about its motion?

• it is slowing down

• it is going around a curve

• it is speeding up

• it is moving backwards

Tags

NGSS.MS-PS3-1

Which statement describes the motion of the car?

• It is speeding up.

• It is slowing down.

• It is moving at a constant speed.

• It is changing direction.