Motion Graph Practice

Assume this is an acceleration graph, where the X axis represents time in seconds and the Y axis represent velocity in m/s. Which statement BEST describes the acceleration represented by the graph?

• Acceleration is positive and constant.

• Acceleration is positive and increasing.

• There is no acceleration.

• Acceleration is positive.

Based on the graph, how would you BEST describe the speed of the racehorse?

• both increasing and decreasing speed

• constantly decreasing speed

• stopped, starting, and then stopped again

• starting to move and then increasing speed

Tags

NGSS.MS-PS3-1

Sara and Sam went for a two-hour drive. According to the graph, between 40 minutes and 80 minutes into their trip, they--

• were not moving since there was no change in position.

• turned around to go home but their speed remained constant.

• traveled at a constant rate of 30km/min.

• slowed down to a speed of 15km/min.

Tags

NGSS.MS-PS3-1

When time was at 0 seconds, this graph describes the motion of a car that was going 10 meters per second. How fast is the car likely going after time passes?

• 5 meters per second.

• 10 meters per second.

• 0 meters per second.

• 15 meters per second.

Tags

NGSS.MS-PS3-1

At the county fair, Carrie and Sam climbed up on the carousel horses. Around and around they went; the horses also bobbed up and down. When they got off of the carousel, Carrie told Sam they had been accelerating during their ride. Sam disagreed; they had been moving at a constant speed. Whose response is fully correct, and why?

• Sam is, because the horses never moved from their position on the carousel.

• Carrie is, because the carousel changed speed when it started and stopped.

• Carrie is, because velocity includes speed plus direction, and both changed.

• Sam is, they did not accelerate since their speed remained constant for the ride.

John and Caroline go out for a drive one day. This graph represents the distance they traveled over time. During what part of their drive are they not moving?

• From 1.25 to 2.0 hours

• From 0 to 0.75 hours

• They are moving the entire time.

• From 0.75 to 1.25 hours

Tags

NGSS.MS-PS3-1

Which point(s) on the graph indicate a change in acceleration?

Responses

• A and E

• B and D

• A, C, and E

• B only

This graph represents the motion of a car while driving over a short distance. Which statement accurately describes the motion of the car in this graph?

• It is going backwards slow, then it is going backwards fast.

• It is going forwards fast, then it is going forwards slowly.

• It is going forwards slow, then it is going forwards fast.

• It is going backwards fast, then it is going backwards slowly.

Tags

NGSS.MS-PS3-1

John and Caroline go out for a walk one day. This graph represents their distance from home.Which statement accurately describes their walk?

• They walked in one direction, then they were still, then they walked in the opposite direction.

• They walked faster and faster until they walked at a constant rate, then they walked slower and slower.

• They walked quickly, then they were still, then they walked slowly.

• They walked forward fast, then they were still, then they walked backward slow.

Here is a graph of speed vs time. If the object is moving to the east, which BEST describes the speed and velocity of the graph?

• Both speed and velocity are changing.

• The speed is constant and velocity is changing.

• The velocity cannot be determined from the graph.

• The speed and velocity remain constant.

Tags

NGSS.MS-PS3-1