One Dimensional Motion

Does the speedometer in a car measure velocity or speed?

• velocity
• speed
• both
• neither

The SI unit for acceleration is

• mph

• ft/sec²

• m/s²

• m/s

Tags

NGSS.HS-PS2-1

Is this a scalar quantity or a vector quantity?

Wind blowing at 20 mph

• Scalar

• Vector

Tags

NGSS.MS-PS3-1

How could a jogger accelerate?

• run uphill then downhill
• run 10 miles N then run 10 miles back
• jog, stop, rest, start again
• speed up, slow down, turn corners

Tags

NGSS.HS-PS2-1

Displacement must always be measured from

• the y-axis.
• a reference point.
• infinity
• the current position of an object.

A negative acceleration means that your object is _____ if the velocity is in the + direction.

• going down the road

• going up the road

• speeding up

• slowing down

A car travels 30 miles/hr for 3 hours, calculate the distance it will travel

• 90 miles
• 10 miles
• 600 miles
• 90 km

Pepita is an Alebrije who appears in the 2017 film Coco. If she flies at 15 m/s for 30 seconds, how far will she travel?

• 450 m
• 2 m
• 0.5 m
• 33.54 m

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A golf ball accelerates off a tee at 15m/s², changing its velocity from 0m/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 meteoroid changed velocity from 1 km/s to 1.8 km/s in 0.03 seconds. What is the acceleration of the meteoroid?

• 60.000 km/s²
• 26.667 km/s²
• 33.333 km/s²
• 11.333 km/s²

Tags

NGSS.HS-PS2-1