Kinematics

A train travels 6 meters in the first second of travel, 6 meters again during the second second of travel, 6 meters again during the third second. It's acceleration is __ m/s²?

• 0

• 6

• 12

• 18

Tags

NGSS.HS-PS2-1

A  car starts from rest and after  7 seconds it is moving at 42  m/s. What is the ’s average acceleration?

• 0.17
• 1.67
• 6
• 7

Tags

NGSS.HS-PS2-1

What is the displacement from B to C?

• 10 m
• 20 m
• 40 m

During which interval is the object speeding up?

• A to B
• B to C
• D to E
• E to F

Tags

NGSS.HS-PS2-1

During which interval is the object slowing down?

• A to B
• D to E
• E to F
• G to H

Tags

NGSS.HS-PS2-1

A ball is thrown into the air. At the highest point, the ball has zero velocity and zero acceleration.

• True
• False

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Acceleration is defined as the CHANGE in 

• time it takes to move from one place to another place.
• velocity of an object
• distance divided by the time interval
• velocity divided by the time interval

Tags

NGSS.HS-PS2-1

Suppose you are in a car that is going around a curve. The speedometer reads a constant 30 miles per hour. Which of the following is NOT true?

• You and the car are accelerating.
• Your acceleration is constantly changing.
• Your velocity is constant.
• Your speed is constant.

Tags

NGSS.HS-PS2-1

As an object falls freely in a vacuum, its

• velocity increases
• acceleration increases
• both a and b
• none of the above

Tags

NGSS.HS-PS2-1

In the absence of air resistance, objects fall at constant 

• speed
• velocity
• acceleration
• all of the above

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4