Concept 2 - Acceleration Preassessment

What are the units for acceleration?

• m/s²

• m

• sec

• s/m

Match the following graphs to the right description.

• Slowing down

• 
• Speeding up

• 
• No acceleration (constant speed)

• 

Tags

NGSS.MS-PS3-1

In which part of the graph is the object slowing down?

• A

• B

• C

• D

Tags

NGSS.MS-PS3-1

A negative acceleration means that your object is  

• constant

• speeding up

• at rest

• slowing down

A positive acceleration means that your object is

• at rest

• speeding up

• moving

• slowing down

Acceleration: is the rate of change in

• velocity

• speed

• displacement

• direction

Which of the following objects is accelerating?

• A car driving in a northwest at a constant speed of 35 mph.

• A car driving southwest at a constant speed of 35 mph.

• A car driving in a circle at a constant speed of 35 mph.

  Back

• A car driving south at a constant speed of 45 mph.

Tags

NGSS.MS-PS2-2

Which graph shows the object standing still?

• A
• B
• C
• D

The slope of a velocity-time graph represents __________.

• acceleration

• displacement

• speed

• distance

Why does a car accelerate as it round a corner at a constant speed?

• Its direction changes
• It doesn't
• It slows down
• Its speeds up