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

What is positive acceleration?

speeding up

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

instantaneous speed

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

going back to start

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

positive, zero, positive, negative

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

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

constant speed

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

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

constant speed

How can you tell an object has moved?

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

What is displacement?

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

What is the unit for speed?

m/s

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

slowing down

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).

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

motionless

Explain why rate and speed are considered the same thing.

Both divide distance by time.

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

What is the unit for distance?

m (km)

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

non-constant speed (acceleration)

What is the unit for rate?

m/s

Define distance.

Total length of an object's path.

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

motionless

What is negative acceleration?

slowing down

Define scalar.

A quantity that includes only magnitude (size).

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

distance, speed, rate

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

constant acceleration

Define vector.

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

How do you calculate average speed?

total distance divided by total time

What does "delta v" represent?

change in velocity (final velocity minus initial velocity)