Motion 1
The change in the initial position and final position is known as what?
Displacement
What is a car doing if on a velocity-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 displacement-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 velocity?
average velocity=change in position/change in time
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 changing 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
A cyclist travels at a constant velocity of 8 m/s for 15 s. Find the cyclist's displacement.
120 m
A car increases its velocity from 10 m/s to 30 m/s in 5 s. Find the average acceleration.
4 m/s2
A train accelerates uniformly from 12 m/s to 32 m/s at 2.5 m/s². Find the time required to reach the final velocity.
8 s
A car traveling at 30 m/s slows uniformly to 10 m/s in 5 s. Find the acceleration.
−4 m/s2
A car moves at 15 m/s and accelerates uniformly at 2 m/s² for 10 s. Find the displacement.
250 m
Formula: Δx=vit + 1/2 at2