Physical Science Midterm

____________ is the change in velocity divided by the time needed for the change to occur.

• average velocity

• speed

• acceleration

• displacement

Average speed is found by ________

• multiplying total distance traveled by total time

• multiplying the displacement by the total time spent

• dividing the displacement by the total time spent

• dividing total distance traveled by the total time

__________ is the speed of an object at any instant of time.

• acceleration

• average speed

• instantaneous speed

• velocity

The distance between your starting position and your final position is called _________

• acceleration

• differential

• displacement

• velocity

At 8 AM you leave home and walk 0.5 km to a friend's house. At 11:30 AM you return home, then travel by car to the mall, which is 10 km away, and arrive at 11:45 AM. What is the total distance traveled?

• 10 km

• 11 km

• 10.5 km

• 2.8 km/h

A net force of 2500 N acts on an African male elephant with a mass of 7000 kg. How large is the acceleration of the African male elephant?

• 0.22 m/s²

• 0.25 m/s²

• 0.30 m/s²

• 0.36 m/s²

Tags

NGSS.MS-PS2-2

A bowling ball with a mass of 7.3 kg has a net force of 1.5 N acting on it. How large is the bowling ball's acceleration?

• 0.21 m/s²

• 0.25 m/s²

• 0.55 m/s²

• 1.25 m/s²

Tags

NGSS.MS-PS2-2

Calculate the momentum of a 16 kg bicycle traveling north at 3 m/s.

• 24 kg m/s

• 36 kg m/s

• 42 kg m/s

• 48 kg m/s

What is the momentum of a train with a mass of 18,000 kg traveling at 13 m/s?

• 233,400 kg m/s

• 234,000 kg m/s

• 234,500 kg m/s

• 240,000 kg m/s

Tags

NGSS.HS-PS2-2

Calculate the momentum of a 12 kg bicycle traveling at 2 m/s east.

• 24 kg m/s

• 28 kg m/s

• 30 kg m/s

• 36 kg m/s