One Dimensional Motion

What does the term "linear" mean?

• Straight line.

• Motion.

• Motion due to forces.

• How fast something is moving.

Which of the following are vectors?

• distance, speed, velocity

• speed, acceleration, velocity

• velocity, displacement, time

• acceleration, velocity, displacement

A woman walks 100 m. It takes him 50 seconds to do this. What is the woman's speed?

• 200 m/s

• 2 m/s

• 1/2 m/s

• 1 m/s

A dog ran at a speed of 20 m/s for 10 seconds. How far did it travel in this time?

• 2 m

• 1/2 m

• 20 m

• 200 m

A car decides to get on the freeway and accelerates from 12 m/s to 20 m/s over 4 seconds. What is it's acceleration?

• 8 m/s²

• 2 m/s²

• 3 m/s²

• 5 m/s²

Tags

NGSS.HS-PS2-1

Can you accelerate while traveling at a constant speed?

• Yes, by changing the direction in which you travel

• No, as long as speed is the same, the acceleration is always zero.

Tags

NGSS.HS-PS2-1

What two factors can create a change in velocity?

• Change in speed and a change in time.

• Change in direction and a change in time.

• Change in speed and a change in direction.

• Change in time and a change in direction.

Which of the following is not a unit of velocity or speed?

• mph

• m/s

• m/s²

• ft/min

What does the triangle, delta, $\Delta$  mean?

• change in speed

• change in velocity

• change in acceleration

• change in

A car traveling at 15 m/s slows down to a stop in a time of 3 seconds. What is its acceleration?

• 5 m/s²

• -5 m/s²

• 15 m/s²

• -10 m/s²

Tags

NGSS.HS-PS2-1