1. Speed, Velocity, and Position Time Graphs

A horse trots for 20 m. The horse took 50 seconds to travel the 20 m. What was the mare's average velocity?

• 1,000 m/s

• 2.5 m/s

• 0.4 m/s

• 20 m/s

How many seconds does it take to travel 800 m at a speed of 25 m/s?

• 32 s

• 20,000 s

• 0.03 s

• 25 s

Jermaine runs exactly 2 laps around a 400 meter track. What is the displacement?

• 800 m

• 400 m

• 0 m

• 200 m

Jake runs 2 miles south, then turns around and runs 3 miles north. What is his displacement?

• 5 miles

• 1 mile

• 2 miles

• 3 miles

Bob runs 2 miles south, then turns around and runs 3 miles north. What is his distance?

• 5 miles

• 1 mile

• 2 miles

• 3 miles

Which is the length of the path an object has traveled?

• displacement

• distance

• motion

• reference point

What describes a vector best?

• Magnitude

• Magnitude and unit

• Magnitude, unit, and direction

• Direction

What does the slope of a position-time graph represent?

• Distance

• Displacement

• Velocity

• Acceleration

Consider the graph shown below. Which description below is consistent with the graph?

• The object moves slowly at a constant speed and then faster at a constant speed.

• The object accelerates in the positive direction and then accelerates more rapidly.

• The object moves forward, changes direction and then accelerates more rapidly.

• The object starts in the positive direction then changes to the negative direction.

Tags

NGSS.HS-PS2-1

Consider the graph shown below. Which description below is consistent with the graph?

• The object accelerates in the positive direction and then in the negative direction.

• The object moves upwards, reaches its peak and then falls with an acceleration.

• The object moves in the positive direction and then moves in the negative direction.

• The object is speeding up, then slowing down.

Tags

NGSS.HS-PS2-1