PS.8a Quiz Review

Arrange the three speeds, s1, s2, and s3, in decreasing order with the highest speed on top.

• s2

• s1

• s3

Tags

NGSS.MS-PS3-1

Which of the following scenarios does NOT represent an acceleration?

• A car parked in a parking lot

• A cyclist speeding up to cross the road

• A runner slowing down after a race

• A ball changing its direction after being hit

Tags

NGSS.MS-PS2-2

A cyclist travels 120 miles in 4 hours while maintaining a constant speed. How many miles does the cyclist travel per hour at this speed?

• 20 mph

• 30 mph

• 40 mph

• 50 mph

A car moving towards the east travels 500 km in 5 hours. Which option correctly identifies the speed and velocity of the car?

• Speed = 100 km/h, Velocity = 100 km/h, east

• Speed = 20 km/h, east, Velocity = 20 km/h

• Speed = 100 km/h, east, Velocity = 100 km/h

• Speed = 20 km/h, Velocity = 20 km/h east

Which of the following graphs represents a constant positive acceleration?

• Graph 1

• Graph 2

• Graph 3

• Graph 4

Tags

NGSS.MS-PS3-1

A rocket ship accelerates to a speed of 1000 m/s in 50 seconds during takeoff. What was the average acceleration of the astronauts in the rocket ship with respect to the ship during takeoff?

• 0 m/s2

• 20 m/s2

• 9.8 m/s2

• 15 m/s2

Tags

NGSS.MS-PS2-2

A car accelerates uniformly from 10 m/s to 40 m/s over a period of 5 seconds. What is the acceleration of the car?

• 6 m/s2

• -6 m/s2

• 8 m/s2

• -8 m/s2

Tags

NGSS.HS-PS2-1

Car B moves (a)   times​ (b)   than Car A.

• 2
• 5
• 3
• faster
• slower

Tags

NGSS.MS-PS3-1

Car C's speed is (a)   cm/sec ​ (b)   than Car D's.

• 15
• 8
• 5
• less
• more

Tags

NGSS.MS-PS3-1

Acceleration is defined as the CHANGE in 

• time it takes for one place to move to another place. 
• position of an object.

• distance divided by the time interval 
• velocity divided by the time interval