How things work college course/Conceptual physics wikiquizzes/Velocity and acceleration

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This diagram shows how to connect the directions with the xy coordinate system. Intended to facilitate problem solving for people with orientation dyslexia.








  

1

When a table cloth is quickly pulled out from under dishes, they hardly move. This is because

the cloth is more slippery when it is pulled quickly
the cloth is accelerating for such a brief time that there is little motion
objects don't begin to accelerate until after the force has been applied

2

A car is traveling west and slowing down. The acceleration is

zero
to the east
to the west

3

A car is traveling east and slowing down. The acceleration is

zero
to the east
to the west

4

A car is traveling east and speeding up. The acceleration is

to the east
to the west
zero

5

If you toss a coin into the air, the acceleration on the way up is

down
zero
up

6

A car is traveling in a perfect circle at constant speed. If the car is headed north while turning west, the acceleration is

west
zero
south
north
east

7

A car is traveling in a perfect circle at constant speed. If the car is headed north while turning east, the acceleration is

east
south
north
zero
west

8

As the Moon circles Earth, the acceleration of the Moon is

away from Earth
towards Earth
opposite the direction of the Moon's velocity
in the same direction as the Moon's velocity
zero

9

If you toss a coin into the air, the acceleration on the way down is

up
down
zero

10

If you toss a coin into the air, the acceleration while it as its highest point is

up
down
zero

11

If you toss a coin into the air, the velocity on the way up is

zero
down
up

12

If you toss a coin into the air, the velocity on the way down is

down
zero
up

13

If you toss a coin into the air, the velocity while it as its highest point is

up
zero
down

14

A car is headed due north and increasing its speed. It is also turning left because it is also traveling in a perfect circle. The acceleration vector points

northwest
south
southwest
north
northeast

15

A car is headed due north and increasing its speed. It is also turning right because it is also traveling in a perfect circle. The acceleration vector points

southwest
south
northwest
north
northeast

16

A car is headed due north and increasing its speed. It is also turning left because it is also traveling in a perfect circle. The velocity vector points

northeast
southeast
northeast
northwest
north

17

A car is headed due north and increasing its speed. It is also turning right because it is also traveling in a perfect circle. The velocity vector points

north
northwest
south
northeast
southwest

18

A car is headed due north and decreasing its speed. It is also turning left because it is also traveling in a perfect circle. The acceleration vector points

west
northwest
southwest
southeast
south

19

A car is headed due north and decreasing its speed. It is also turning right because it is also traveling in a perfect circle. The acceleration vector points

northwest
north
south
northeast
southeast