Speed, Velocity & Forces

What is the formula for calculating average speed?

• Change in speed / Time

• Total Distance / Total Time

• F=ma

• Total Distance / Total Time AND direction

A runner races in the 100 meter dash.  It takes her 10 seconds to finish.  What is her average speed?

• 10 m/s
• 1000 m/s
• 100 seconds
• 10 seconds

On the velocity-time graph, during what time period does the object not experience any acceleration?

• 0 - 5 seconds

• 10 - 20 seconds

• 20 - 30 seconds

• 0 - 30 seconds

Which is an example of acceleration?

• speeding up

• slowing down

• changing direction

• all of these

The tornado is traveling northwest at 20 mph. 

• speed
• velocity
• acceleration

Tags

NGSS.MS-PS2-2

The Olympian swam 200 meters in 20 seconds. 

• speed
• velocity
• acceleration

Tags

CCSS.HSF.IF.B.6

CCSS.8.F.B.4

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

• It changes direction.

• It doesn't accelerate.

• It slows down.

• It speeds up .

Which of the following is a unit for acceleration?

• km/s
• m/s²
• mi/hr
• ft

Tags

NGSS.HS-PS2-1

Which of the following best describes the velocity of an object?

• 30 m/s

• 30 m south

• 30 m/s south

• 30 m/s²

The sum of all forces acting on an object.

• Contact Force
• Balanced Force
• Unbalanced Force
• Net Force

Tags

NGSS.MS-PS2-2