1D Kinematics

A car goes from 0 m/s to 50 m/s in 3.5 s. What is its average acceleration?

• 7.14 m/s^2
• -7.14 m/s^2
• 14.29 m/s^2
• -14.29 m/s^2

What are the units of speed?

• m
• m/s
• m/s^2
• s

Tags

NGSS.HS-PS4-1

What is an example of acceleration?

• The change in velocity over time
• An object's speed changes
• An object in motion changes direction
• All of the above

Tags

NGSS.HS-PS2-1

What are the units of velocity?

• m
• m/s^2
• m/s
• s

How do you calculate average speed?

• divide total time by total distance

• multiply total time by total distance

• divide total distance by total time

• subtract total time from total distance

Velocity is both ____ and _____.

• speed , direction

• direction, mass

• volume, density

• direction, magnitude

A ball is thrown downward from the top of a roof with a speed of 25 m/s. After 2 s, its velocity will be:

• 19.6 m/s
• -5.4 m/s
• -44.6 m/s
• 44.6 m/s

Tags

NGSS.HS-PS2-1

An airplane lands on a runway with a velocity of 150 m/s. How far will it travel until it stops if its rate of deceleration is constant at -3 m/s²?

• 525 m
• 3750 m
• 6235 m
• 9813 m

Tags

NGSS.HS-PS2-1

How much time would it take for an object to fall 4.7 meters?

• 0.959 s
• 4.79 s
• 0.979 s

Tags

NGSS.MS-PS2-2

A boat travels 12.0 m while it reduces its velocity from 9.5 m/s to 5.5 m/s. What is the magnitude of the boat’s acceleration while it travels the 12.0 m?

• 1.3 m/s²
• 2.5 m/s²
• 3.0 m/s²
• 7.5 m/s²

Tags

NGSS.HS-PS2-1