Quiz2

From rest, a car accelerated at 8 m/s2 for 10 seconds. What is the final velocity of the car?

• 10 m/s

• 20 m/s

• 40 m/s

• 80 m/s

Tags

NGSS.HS-PS2-1

Diego, a runner, competes in the 800-meter dash and finishes with a time of 3 minutes and 10 seconds. What is Diego’s speed?

• 4.0 m/s

• 4.1 m/s

• 4.2 m/s

• 4.3 m/s

Tags

NGSS.MS-PS3-1

What is the acceleration of an object that moves from rest to a velocity of 18 m/s covering a distance of 15 m?

• 10.8 m/s2

• 10.9 m/s2

• 11.0 m/s2

• 11.1 m/s2

Tags

NGSS.HS-PS2-1

What device in a car measures the instantaneous speed?

• accelerometer

• fuel gauge

• odometer

• speedometer

An object is dropped from a height of 500 m, how long is it in the air?

• 10.0 s

• 10.1 s

• 25.0 s

• 25.5 s

Tags

NGSS.HS-PS2-1

An object accelerates from rest at a constant rate of 1.4 m/s2, what will its velocity be after 7.5s?

• 9.5 m/s

• 10.0 m/s

• 10.5 m/s

• 11.0 m/s

Tags

NGSS.HS-PS2-1

In which section is the car accelerating from rest?

• section A

• section B

• section C

• section D

Tags

NGSS.HS-PS2-1

In which period is the car’s acceleration negative?

• 0-4 s

• 4-9 s

• 9-11 s

• 11-15 s

Tags

NGSS.HS-PS2-1

To determine the height of a bridge above the water, a person drops a stone and measures the time it takes for it to hit the water. If the height of the bridge is 65 m, how long will it take for the stone to hit the water? Neglect air resistance.

• 3.3 s

• 3.4 s

• 3.5 s

• 3.6 s

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

What is the shortest distance needed for an airplane touching the runway with a velocity of 360 km/h and an acceleration of -10 m/s2 to come to rest?

• 330 m

• 420 m

• 500 m

• 648 m

Tags

NGSS.HS-PS2-1