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Motion Review

Define vector.

A quantity that includes both magnitude (size) and direction.
5

Define scalar.

A quantity that includes only magnitude (size).
5

How can you tell an object has moved?

The object's position changes compared to a reference frame.
10

Which term(s) is(are) scalar: distance, displacement, speed, rate, velocity, acceleration

distance, speed, rate
15

Define distance.

Total length of an object's path.
5

What is displacement?

An object's ending position compared to its starting point.
10

How quickly an object is moving at a certain time is its...

instantaneous speed
15

When does an object's velocity change?

speed up, slow down, change direction
15

What is negative acceleration?

slowing down
5

What is positive acceleration?

speeding up
5

How do you calculate average speed?

total distance divided by total time
15

What is the unit for speed?

m/s
10

What is the unit for distance?

m (km)
10

What is the unit for acceleration?

m/s/s
10

What is the unit for rate?

m/s
10

What is the unit for velocity?

m/s + direction
15

Explain why a car turning a corner at a constant speed of 20 m/s is not traveling at a constant velocity.

Because the direction of the car is changing, velocity is not constant (vector).
15

What does a horizontal line on a distance vs time graph represent?

motionless
10

What does a diagonal, straight line represent on a distance vs time graph?

constant speed
10

What does a curved line represent on a distance vs time graph?

non-constant speed (acceleration)
10

What does a horizontal line above the x axis represent on a speed vs time graph represent?

constant speed
10

What does a horizontal line on the x axis on a speed vs time graph represent?

motionless
10

What does a straight, diagonal line represent on a speed vs time graph?

constant acceleration
10

What does negative slope represent on a speed vs time graph?

slowing down
10

What does negative slope represent on a distance vs time graph?

going back to start
10

How do you calculate distance?

Add up all of the lengths to get a total distance.
10

What does "delta v" represent?

change in velocity (final velocity minus initial velocity)
15

Explain why rate and speed are considered the same thing.

Both divide distance by time.
10

Explain the motion of the object in the graph.

slow constant speed away from start, stopped, slow constant speed away from start, fast constant speed home
25

Calculate the speed of the object during the third section of movement

S=? D=30m T=3s S=D/T S=30m/3s S=10m/s
25

Describe the motion of the object using the graph.

accelerating quickly, constant speed, slow acceleration, slow deceleration
25

Describe the acceleration of the object using each section of the graph

positive, zero, positive, negative
20

Explain the difference between speed and acceleration.

Speed only considers the distance and object moves in a given time, which acceleration includes how quickly the speed is changing in a given time with direction
20

Draw a graph for a person who walks up a hill at a constant speed, across the top, and down the other side.

See Graph on Board
25

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How to Play

Make your teams.

Take turns choosing questions.

Say the answer then hit the`Check` button.

Click`Okay` if the answer is correct or `Oops` if not.

Take turns choosing questions.

Say the answer then hit the

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Questions

Teams

Tip:
When playing, double-click team names to rename them