Speed and Velocity

Which two measurements do you need to determine the speed of an object?

• Position and Reference point

• Distance and Reference point

• Distance and Time

• Distance and Velocity

Tags

NGSS.MS-PS3-1

Which of the following is NOT an example of acceleration?

• Driving at a steady speed and turning left.

• Driving at a steady speed and then slowing down.

• A change in velocity from 40km/h to 65 km/h

• A car moving at a steady speed of 60 km/hr.

What is motion?

• the location of an object

• the change in position over time

• distance divided by time

• the velocity of an object

Tags

NGSS.MS-PS2-2

How do you calculate average acceleration of an object?

• Subtract the final velocity from the initial velocity and divide by time

• Subtract the initial velocity from the final velocity and divide by time

• Add the the two distances and divide by the total time

• Divide distance by time

Tags

NGSS.HS-PS2-1

In a race, Taylor ran the first 50 meters in 33 seconds and the second 50 meters in 32 seconds. What is his average speed during the race?  

Speed = distance / time 

• 1.54 m / sec

• 1.53 m /sec 

• 1.52 m / sec 

• 0.65 m / sec 

Which of these graphs show a constant velocity?

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• 
• 

Tags

NGSS.MS-PS3-1

Which of these graphs show acceleration?

• 
• 
• 
• 

Tags

NGSS.HS-PS2-1

A shark is swimming at a speed of 14m/s until it senses a fish and speeds up up at a rate of 20m/s and catches it in 3 seconds. What was the shark's acceleration?

• 10 m/s²

• 0.5 m/s²

• 2m/s²

• 5 m/s²

Tags

NGSS.MS-PS2-2

If a car is going at a constant velocity, does the car have a change in momentum?

• Yes

• No

• Maybe

• Not enough information

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

For an object to have force, it needs... (select all that apply)

• A change in velocity

• A change in momentum

• An acceleration

• None of the above

• A Jedi

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2