Unit 5 + 6

What does the slope on a distance/time graph represent?

• A. Speed

• B. Distance

• C. Time

• D. Acceleration

What does the slope on a speed/time graph represent?

• A. Acceleration

• B. Speed

• C. Distance

• D. Time

What is the difference between a scalar quantity and a vector quantity?

• Scalars have magnitude only, vectors have magnitude and direction.

• Scalars have direction only, vectors have magnitude only.

• Scalars and vectors both have magnitude and direction.

• Scalars have magnitude and direction, vectors have magnitude only.

What equation do you use for speed/velocity calculations? What do each of the variables represent?

• v = d/t, where v is velocity, d is distance, t is time.

• v = t/d, where v is velocity, t is time, d is distance.

• v = d*t, where v is velocity, d is distance, t is time.

• v = t-d, where v is velocity, t is time, d is distance.

Tags

NGSS.MS-PS3-1

What is the average speed of a car that travelled 300.0 kilometers in 5.5 hours?

• 54.5 km/h

• 60.0 km/h

• 55.0 km/h

• 50.0 km/h

What distance will a car travel if it drives for 25 seconds at a speed of 23.1 m/s?

• 577.5 meters

• 500.0 meters

• 600.0 meters

• 525.0 meters

Tags

NGSS.MS-PS3-1

An object is uniformly accelerated from rest to a speed of 21 m/s in 10 seconds. What is the object's acceleration?

• 2.1 m/s²

• 2.0 m/s²

• 2.5 m/s²

• 3.0 m/s²

Tags

NGSS.MS-PS2-2

What is the value for acceleration due to gravity on Earth?

• 9.8 m/s²

• 10.0 m/s²

• 9.0 m/s²

• 8.8 m/s²

A ball is dropped and takes 12 seconds to hit the ground. How fast was the ball moving when it hit the ground?

• 117.6 m/s

• 120.0 m/s

• 110.0 m/s

• 100.0 m/s

Tags

NGSS.HS-PS2-1

What are the four types of friction? Which type is the strongest? Which type is the weakest?

• Static, sliding, rolling, fluid; static is strongest, fluid is weakest.

• Sliding, rolling, fluid, air; sliding is strongest, air is weakest.

• Static, rolling, fluid, air; rolling is strongest, air is weakest.

• Static, sliding, fluid, air; fluid is strongest, air is weakest.