Phys 232 Exam

How is displacement different from distance?

• displacement is a vector, it must have magnitude and direction

• displacement is a vector, it must have magnitude only

• displacement is a scalar, it must have magnitude and direction

• displacement is a scalar, it must have magnitude only

A man walks 10 meters east and 5 meters west. What was his displacement?

• 15 meters east

• 15 meters west

• 5 meters east

• 5 meters west

What distance did the object travel in 3 seconds?

• 10 m

• 20 m

• 30 m

• 50 m

Tags

NGSS.MS-PS3-1

What is the speed of this object?

• 10 m/s

• 20 m/s

• 50 m/s

• Can't tell, the speed is increasing

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NGSS.MS-PS3-1

A golf ball accelerates off a tee at 15 m/s², changing its velocity from 0 m/s to 50 m/s down the fairway. How long did it take the golf ball to accelerate?

• 750 seconds
• 35 seconds
• 0.3 seconds
• 3.3 seconds

Tags

NGSS.HS-PS2-1

A drag racer accelerated from 0 m/s to 200 m/s in 5 s.  What was the acceleration?

• 0 m/s
• 40 m/s²
• -40 m/s²
• 40 m/s

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NGSS.HS-PS2-1

The SI unit for acceleration is

• mph
• ft/sec²
• m/s²

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NGSS.HS-PS2-1

What happens to the velocity of a ball as it is dropped off a cliff? 

• It decreases at a uniform rate 
• It increases at a uniform rate 
• It is constant 
• It increases at a non-uniform rate

Tags

NGSS.HS-PS2-1

A baseball is thrown up into the air. What happens to the velocity as the ball rises in the air?

• the velocity increases

• the velocity decreases

• the velocity remains constant

Tags

NGSS.HS-PS2-1

A baseball is thrown up into the air. What happens to the acceleration as the ball rises in the air?

• the acceleration increases

• the acceleration decreases

• the acceleration remains constant

Tags

NGSS.HS-PS2-1