Acceleration & Net Force (3.3+3.4)

If a train is slowing down, it is accelerating.

• True

• False

If a car stays at the same speed but travels around a curve in the road, it is accelerating.

• True

• False

Tags

NGSS.MS-PS2-2

The rate at which velocity changes is called:

• Distance

• Speed

• Acceleration

• Time

Acceleration refers to:

• Increasing Speed

• Decreasing Speed

• Changing Direction

• ALL of these answers

Whenever an object's speed changes, the object __________.

• speeds

• accelerates

• jumps up and down

• moves down

Tags

NGSS.MS-PS2-2

The direction and strength of a force can be represented by a(n):

• X

• negative sign

• plus sign

• arrow

When a runner increases her speed from 75 m/s to 115 m/s in 25 seconds, her acceleration is ________.

• 4.6 m/s²

• 1.6 m/s²

• 40 m/s²

• 10 m/s²

If a car's speed increases from 18 m/s to 26 m/s in 10 seconds, its acceleration is __________.

• 0.8 m/s²

• 18 m/s²

• 8 m/s²

• 2 m/s²

What is the acceleration of a toy car that starts from rest and has a speed of 0.12 m/s after 0.1 seconds?

• 0.8 m/s²

• 2 m/s²

• 1.2 m/s²

• 2 m/s²

An airplane is traveling at a speed of 106 m/s and takes 20 seconds to land and stop on the runway. What is the plane's acceleration?

• -5.3 m/s²

• 5 m/s²

• -1.2 m/s²

• -86 m/s²