Answers AA-F26 Physical ScienceSpeed and Velocity

Speed and Velocity Answers

10 verified answers4 views

Free Preview

The chart shows Daniela’s run through her race.

1.5 m/s

2 m/s

2.5 m/s

5 m/s

Free Preview

Which best defines the relationship between speed and velocity?

Speed is velocity with displacement.

Velocity is speed with displacement.

Speed is based on a specific direction.

Velocity is based on distance.

Veronica’s velocity was measured as 4.3 m/s. She displaced 20 meters in 4.7 seconds. Which piece of information is missing for the correct calculation of velocity?

the starting point

the direction

the end point

the time per meter

Which units are used to measure both velocity and speed? Select three options.m/sd/tkm/hmphm2

m/s

d/t

km/h

mph

Kiley went 5.7 km/h north and then went 5.8 km/h west. From start to finish, she went 8.1 km/h northwest.Which best describes her numbers?

5.7 km/h north and 5.8 km/h west are instantaneous speeds, while 8.1 km/h northwest is the average speed.

5.7 km/h north and 5.8 km/h west are average speeds, while 8.1 km/h northwest is the instantaneous speed.

5.7 km/h north and 5.8 km/h west are average velocities, while 8.1 km/h northwest is the instantaneous velocity.

5.7 km/h north and 5.8 km/h west are instantaneous velocities, while 8.1 km/h northwest is the average velocity.

Which statement can be supported by using a position-time graph?

A negative slope results when an individual is moving away from the origin.

A horizontal line on the graph means the individual is moving at a non-zero velocity.

A positive slope results when an individual is moving away from the origin.

The speed of an individual cannot be determined from this type of graph.

Jamal is 8 miles away from his house. He rides his bike home toward home at a speed of 12 mph..How far away from home is he after a half hour?

1 mile

2 miles

3 miles

4 miles

Which explains the information needed to calculate speed and velocity?

Both require the total distance, but velocity also requires time and displacement.

Both require time, but velocity requires displacement and speed requires distance.

Speed requires displacement, while velocity requires distance.

Speed does not require time, while velocity does require time.

Mr. Smith is designing a race where velocity will be measured. Which course would allow velocity to accurately get a winner?

a 5 mile course from the center of town heading north to the outskirts of town

a 100 meter swim in a 50 meter pool

a 2 mile run around a 400 meter track

a 10 mile bike course that zigzags through the mountains and back again

The chart indicates the time, speed, and velocity of five runners.

Garreth and Elisa ran the same distance but not the same displacement, Luigi and Jasmine went the same displacement, and Logan ran faster than Jasmine.

Garreth ran farther than Luigi, Elisa and Jasmine went the same distance, and Logan and Jasmine has the same displacement in the opposite direction.

Garreth and Elisa ran together, Luigi and Jasmine went the same distance, and Logan and Jasmine have the same displacement in the opposite direction.

Garreth ran less than Logan, Elisa and Jasmine went the same displacement, and Luigi and Garreth ran together.

Which best defines the relationship between speed and velocity?

Speed is velocity with displacement.

Velocity is speed with displacement.

Speed is based on a specific direction.

Velocity is based on distance.

Jamal is 8 miles away from his house. He rides his bike home toward home at a speed of 12 mph..How far away from home is he after a half hour?

1 mile

2 miles

3 miles

4 miles

Which is a valid velocity reading for an object?

45 m/s

45 m/s north

0 m/s south

0 m/s

Mr. Smith is designing a race where velocity will be measured. Which course would allow velocity to accurately get a winner?

a 5 mile course from the center of town heading north to the outskirts of town

a 100 meter swim in a 50 meter pool

a 2 mile run around a 400 meter track

a 10 mile bike course that zigzags through the mountains and back again

The graph indicates the running route for Tobias.Which best describes his run?

From time 0 to 6, he went fast and then slowed down.

From time 6 to 10, he was at his slowest.

From time 12 to 14, he went very slow.

From time 14 to 18, he went toward the starting point.

Lila is a track and field athlete. She must complete four laps around a circular track. The track itself is a 400 meter track and it took her 6 minutes total to complete.Which best describes her speed and velocity? (There are 60 seconds in 1 minute.)

Her speed is 4.4 m/s, and her velocity is 0 m/s.

Her speed is 1.1 m/s, and her velocity is 0 m/s.

Her speed is 0 m/s, and her velocity is 2400 m/s.

Her speed is 4.4 m/s, and her velocity is 4.4 m/s.