1-D Moton Review

The speed of sound is 344 m/s. You see a flash of lightning and then hear the thunder 1.5 seconds later. How far away from the lightning strike are you?

• 400m

• 520m

• 600m

• 700m

A race car accelerates from rest to a speed of 287 km/h in 6.8 seconds. What is its average acceleration?

• 2 m/s2

• 12 m/s2

• 20 m/s2

• 40m/s2

You are in an elevator that is accelerating you upward at 4.55 m/s². How much time till you are traveling at 11.0 m/s?

• 2.42s

• 4.42s

• 5.20s

• 7.80s

Which one of the following is not a vector quantity?

• acceleration

• displacement

• average speed

• instantaneous velocity

A car, starting from rest, accelerates in a straight-line path at a constant rate of 2.5 m/s².

How far will the car travel in 12 seconds?

• 180 m

• 15 m

• 120 m

• 4.8 m

The space shuttle undergoes an acceleration of 53.9 m/s². How fast is it traveling at the end of 55.2 s?

• 2000 m/s

• 2980 m/s

• 4000m/s

• 5000m/s

A car traveling in a straight line has a velocity of + 5.0 m/s at some instant. After 4.0 s, its velocity is + 8.0 m/s. What is its average acceleration during this time interval?

• 0.1 m/s2

• 0.75m/s2

• 3.0m/s2

• 5.5m/s2

When the outdoor emergency warning siren at Cheryl’s school was tested, the sound from the siren took 7.0 s to reach her house located 2.40 km from the school. What is the speed of sound in air?

• 140m/s

• 340m/s

• 440m/s/

• 540m/s

Richard’s scooter can accelerate from rest at 15.8 m/s². What is the final velocity of her scooter after 10s?

• 128m/s

• 158m/s

• 378m/s

• 435m/s

Albert decides to ride his bike down Midland Drive and accelerates from rest with an acceleration of 3.0 m/s2. What is its velocity at the end of 5.0 sec?

• 0m/s

• 10m/s

• 15m/s

• 25m/s