Unit 3 Review

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 of time?

• sec
• mi
• m/s
• km

Dave runs a 400 m race with a speed of 4 m/s. What time will it take him to finish the race?

• 400 minutes
• 100 minutes
• 100 seconds 
• .25 seconds 

Which of the following is a unit of speed ?

• sec
• mi
• m/s
• min

Tags

NGSS.MS-PS3-1

What is speed?

• The rate at which an object changes position
• The direction an object is moving
• moving fast
• change in speed or direction

Tags

NGSS.MS-PS3-1

What are balanced forces?

• forces of the same size, in opposite directions
• the same size in the same direction
• forces in opposite directions
• forces at right angles to each other

The picture of the position vs. time graph shows an object that is...

• accelerating/speeding up
• moving at a constant speed 
• not moving 
• accelerating/slowing down. 

Tags

NGSS.MS-PS3-1

Which graph represents the greatest acceleration?

• A
• B
• C
• D

Tags

NGSS.MS-PS3-1

The rate that a car's velocity changes is its

• speed

• force

• gravity

• acceleration

What is velocity?

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