Motion NCFE Review

This graph represents the motion of a cart. How does the speed of the cart compare when t = 6 s and t = 12 s?

• The speed of the cart at 6 s is greater than when time equals 12 s.

• The speed of the cart at 6 s is less than when time equals 12 s.

• The speed of the cart is 2 m/s at 6 s and 12 s.

• The speed of the cart os 0.5 m/s at 6 s and 12 s

Tags

NGSS.MS-PS3-1

The chart represents the change in velocity for four different trains. If it took 5.38 s to reach the final velocity, which train had the greatest acceleration?

• W

• X

• Y

• Z

The graph shows the motion of four cars. Based on the graph, which statement about all the cars is true?

• They are moving at a constant speed.

• They are changing their speed during travel.

• They are slowing down.

• They are stopped.

A ball at rest is dropped and hits the ground in 1.5 s with a final speed of 15 m/s. How would the acceleration and final speed of the ball be affected if it were dropped from a greater height on Earth? (Ignore friction.)

• Its final speed would remain the same because its rate of acceleration would remain the same.

• Its final speed would increase because its rate of acceleration would remain the same.

• Its final speed would remain the same because its rate of acceleration would decrease.

• Its final speed would increase because its rate of acceleration would increase.

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

This graph represents the velocity of an object over time. What is the average acceleration of the object during the first 4 seconds?

• 1 m/s/s

• 2 m/s/s

• 4 m/s/s

• 8 m/s/s

The graph represents the motion of a cart. What is the average speed of the cart?

• 0.83 m/s

• 1.17 m/s

• 5 m/s

• 65 m/s

Tags

NGSS.MS-PS3-1

A car is traveling at a constant speed of 12 m/s. When the driver accelerates, the car reaches a speed of 26 m/s in 6 s. What is the average acceleration of the car?

• 2 m/s/s

• 2.3 m/s/s

• 4.3 m/s/s

• 84 m/s/s