Forces and Energy

Which is MOST likely needed when describing the change in position of an object?

• Initial speed

• direction change

• reference point

• constant rate

The car is described as traveling east at 30 km/hr. From which reference point in the diagram is the motion of the car MOST likely being described?

• 1

• 2

• 3

• 4

Which best describes distance?

• The shortest length between 2 points.

• The total length between points.

• A direct route between point A and point B.

• “as the crow flies”

Location and position describes -_______.

• Motion

• Speed

• Reference point

• velocity

You are on a train. Your mother is waving goodbye. Why does it look like you are moving to your mother when you are sitting still on the train?

• Reference point

• frame of reference

• motion

• velocity

A car goes from 1.5 m/s to 3 m/s. Which best describes what is happening to the car?

• balance

• accelerating

• decelerating

• displaced

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-5

What is the best formula for speed?

• Mass/acceleration

• distance /velocity

• distance/time

• acceleration/mass

Tags

NGSS.MS-PS3-1

Megan is sitting in her car in the parking lot. The car next to her pulls forward. If Megan is only looking at the car next to her, what direction does Megan’s car appear to be moving?

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Maria and Kelsey are running. Maria runs 100 meters in 10 seconds. Kelsey runs 200 meters in 20 seconds. Who ran the fastest, and at what speed?

• Maria 10 m/s

• Maria 5 m/s

• Kelsey, 20 m/s

• It was a tie, 10 m/s

Cody and Adam are pulling on a rope. Each boy is trying to pull the flag attached to the middle of the rope to his side. If each boy pulls with the force shown, what is the net force acting on the rope?

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Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2