PLTW Kinematics Graph Analysis

Acceleration vs time graphs for five objects are shown below. All axes have the same scale. Which object had the greatest change in velocity during the interval?

• A

• B

• C

• D

• E

Tags

NGSS.HS-PS2-1

When is the acceleration the most negative?

• R to T

• T to V

• V

• X

• X to Z

Tags

NGSS.HS-PS2-1

The following graph shows the motion of an object. Which sentence is the best interpretation?

• The object is moving with a constant, non-zero acceleration

• The object does not move

• The object is moving with a uniformly increasing velocity

• The object is moving at a constant velocity

• The object is moving with a uniformly increasing acceleration.

Tags

NGSS.HS-PS2-1

An elevator moves from the basement to the tenth floor of a building. The mass of the elevator is 1000 kg and it moves as shown in the velocity-time graph below. How far does it move during the first three seconds of motion?

• 0.75 m

• 1.33 m

• 4.0 m

• 6.0 m

• 12.0 m

Tags

NGSS.HS-PS2-1

The velocity at the 2 second point is:

• 0.4 m s^-1

• 2.0 m s^-1

• 2.5 m s^-1

• 5.0 m s^-1

• 10.0 m s^-1

This graph shows velocity vs time for a car of mass 1.5 x 10³ kg. What was the acceleration at the end of 90 s?

• 0.22 m s^-2

• 0.33 m s^-2

• 1.0 m s^-2

• 9.8 m s^-2

• 20 m s^-2

Tags

NGSS.HS-PS2-1

The motion of an object travelling in a straight line is represented by the following graph. At time=65 s the magnitude of the instantaneous acceleration of the object was most nearly:

• 1 m s^-2

• 2 m s^-2

• 9.8 m s^-2

• 30 m s^-2

• 34 m s^-2

Tags

NGSS.HS-PS2-1

The graph shows the object's motion. Which sentence is a correct interpretation?

• The object rolls along a flat surface. Then it rolls forward down a hill, and then finally stops.

• The object doesn't move at first. Then it rolls forward down a hill and finally stops.

• The object is moving at a constant velocity. Then it slows down and stops.

• The object doesn't move at first. Then it moves backwards and then finally stops.

• The object moves along a flat area, moves backwards down a hill, and then it keeps moving.

Tags

NGSS.MS-PS3-1

An object starts from rest and undergoes a positive, constant acceleration for ten seconds. It then continues on with a constant velocity. Which of the following graphs correctly describe the situation?

• A

• B

• C

• D

• E

Tags

NGSS.HS-PS2-1

Five objects move according to the following acceleration vs time graphs. Which has the smallest change in velocity during the three second interval?

• A

• B

• C

• D

• E

Tags

NGSS.HS-PS2-1