Velocity (Speed) and Acceleration

Acceleration describes how an object’s velocity is changing.  Which of the following scenarios provides the best example of an accelerating object?

• A car driving at a constant speed
• A book sitting on top of a high shelf
• A toy train traveling in a circle
• A toy boat floating in a bathtub

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-5

What is velocity?

• the quickness of an object
• the location of an object
• acceleration
• speed in a specific direction

What is the formula to calculate speed?

• S = t/d
• S = d/t
• S = d x t
• S = t x d

Tags

NGSS.MS-PS3-1

Which of the following is a unit for acceleration?

• km/s
• m/s²
• mi/hr
• ft

This chart represents the velocity of a bicycle over time. Select the correct statement regarding the bicycle's movement.

• The bicycle has constant velocity.

• The bicycle has constant speed.

• The bicycle is accelerating.

• The bicycle has 0 acceleration.

Km (kilometers) is a unit for ___. 

• Speed
• Distance
• Time
• Direction

You calculate acceleration by ..?

• subtracting starting speed from ending speed and dividing by time

• subtracting ending speed from starting speed and dividing by time

• subtracting distance by direction

• Dividing initial speed by final speed

An object moving at -5 m/s² is doing what?

• Speeding up

• Slowing down

• Moving at the same speed

• Stopped

Tags

NGSS.MS-PS3-1

Acceleration only takes place when things speed up. 

• True
• False

The metric unit for velocity is ________.

• m
• m/s
• m/s²
• s

Tags

NGSS.MS-PS3-1