Study Mode

Motion Review

What does "delta v" represent?

change in velocity (final velocity minus initial velocity)
What does a horizontal line on the x axis on a speed vs time graph represent?

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

slowing down
What is positive acceleration?

speeding up
What is the unit for speed?

m/s
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
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
Describe the motion of the object using the graph.

accelerating quickly, constant speed, slow acceleration, slow deceleration
What does a curved line represent on a distance vs time graph?

non-constant speed (acceleration)
What is negative acceleration?

slowing down
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
How do you calculate distance?

Add up all of the lengths to get a total distance.
Describe the acceleration of the object using each section of the graph

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

distance, speed, rate
What is the unit for acceleration?

m/s/s
Define distance.

Total length of an object's path.
What does a horizontal line on a distance vs time graph represent?

motionless
Explain why rate and speed are considered the same thing.

Both divide distance by time.
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).
Define vector.

A quantity that includes both magnitude (size) and direction.
What does negative slope represent on a distance vs time graph?

going back to start
What is the unit for velocity?

m/s + direction
What does a straight, diagonal line represent on a speed vs time graph?

constant acceleration
When does an object's velocity change?

speed up, slow down, change direction
What does a diagonal, straight line represent on a distance vs time graph?

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

instantaneous speed
How can you tell an object has moved?

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

A quantity that includes only magnitude (size).
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
How do you calculate average speed?

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

constant speed
What is the unit for rate?

m/s
What is the unit for distance?

m (km)
What is displacement?

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

How to Play

Separate students into teams.

Teams take turns choosing random questions.

Press the`Check` button after an answer has been given.

If the answer is correct press`Okay`, if not, press the `Oops` button.

Teams take turns choosing random questions.

Press the

If the answer is correct press

Questions

Teams

Tip: When in-game, click team names a few times to rename them!