Motion 1
The change in the initial position and final position is known as what?
Displacement
What is a car doing if on a speed-time graph it is a diagonal line going down?
slowing down
If Joe runs 4 miles in 1 hour and Bob runs 2 miles in 20 minutes, who is faster?
Bob is faster
A race car moves at constant speed around a track, is the car accelerating?
No
Motion of a car if the line on the distance-time graph is horizontal.
Not moving
What is a reference point?
the starting point you choose to describe the location, or position, of an object
What is the equation for average speed?
s=d/t
Is the acceleration positive or negative when slowing down
Negative
Preston walks 10km west to the grocery store. He shops and then walks back 10km east to his house. What was the distance that he covered?
20km
Constant speed on a speed-time graph looks like
A straight line across
The amount an object moves is known as this.
Distance
What is velocity?
The speed and direction of a moving object
Three ways to change acceleration
speeding up, slowing down, changing direction
The rate of change in velocity is known as this.
acceleration
The sloping line on a speed-time graph represents
acceleration
What is the process of chancing position known as?
Motion
What is the drawing representation of velocity?
Arrows of varying length
What are the three ways an object can accelerate?
Speed up, slow down, or change direction
Motion of a car if the line on a distance-time graph is curving upward.
Speeding up
The slope of a distance vs. time graph represents this.
speed
The distance an object moves in a unit of time
Speed
The units for acceleration are this.
m/s2
A graph that can help you predict the speed of a moving object.
Distance-Time Graph
What is on the y-axis of a distance-time graph?
distance
The SI unit representing speed or velocity
m/s