Ch. 1 Lesson 3 - Acceleration

Question 1

a measure of the change in velocity during a period of time

Answer 1

acceleration

Question 2

if a car turns, its ________ changes because its ___________ changed

Answer 2

• velocity
• direction

Question 3

any time an object’s velocity changes, that object is what?

Answer 3

accelerating

Question 4

an object accelerates when its velocity changes due to what 3 things?

Answer 4

1. increasing speed
2. decreasing speed
3. change in direction

Question 5

what are 2 ways an object can accelerate?

Answer 5

it can speed up or slow down

Question 6

when velocity increases, acceleration and velocity arrows point in ___________ direction

Answer 6

the same

Question 7

when velocity decreases, acceleration and velocity arrows point in ___________ direction

Answer 7

opposite

Question 8

when a car is moving, to show this direction of change, the acceleration arrow points toward the ________ of the curve

Answer 8

inside

Question 9

what is average acceleration measured in

Answer 9

SI units

Question 10

if average acceleration is _________, the acceleration is the direction of motion

Answer 10

positive

Question 11

if average acceleration is _________, the acceleration is in the opposite direction of the motion

Answer 11

negative

Question 12

______ is plotted on the x-axis

Answer 12

time

Question 13

_________ is plotted on the y-axis

Answer 13

speed