Forces and Motion

Which of the following is the best definition of "Mechanics"?

• A branch of science looking into forces.

• A branch of science looking into forces and how they affect the motion of a body

• A branch of science looking into a body's motion with no regard to causes

• A branch of science looking at the movement of wave energy

Which of the following is not true about distance?

• it does not account for direction

• it is represented by the symbol "d"

• it is measured in metres

• it is a vector

What is the speed of an object that travels 60 meters in 4 seconds?

• 240 m/s
• 15 m/s
• 0.067 m/s
• 15 mph

Tags

NGSS.MS-PS3-1

Bob runs 1800 seconds at an average speed of 1.5 m/sec. How far did he go?

• 4500 m

• 3500 m

• 2700 m

• 1400 m

Match the graph to the description:

"The car is stopped."

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Tags

CCSS.8.EE.B.5

Match the graph to the description:

"The car is accelerating."

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Tags

NGSS.MS-PS3-1

Which runner won the race?

• A
• B
• C

Tags

NGSS.MS-PS3-1

How long did it take this object to travel 10 m?

• 0 s
• 10 s
• 15 s
• 20 s

Tags

CCSS.8.EE.B.5

Which runner had a head start?

• A
• B
• C

Tags

CCSS.8.EE.B.5

The slope of a distance-time graph tells us the _______

• displacement of the object

• speed of the object

• weight of the object

• velocity of the object