Physics 1.0 Flashcards Preview

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Flashcards in Physics 1.0 Deck (15):
1

A ball of clay is thrown at a wall at a velocity of 28.0 m/s. After it hits the wall, it takes 0.020 s to stop. What is the acceleration of the clay when it hits the wall?

-1400m/s^2

2

Lexi runs west for 1600 meters over the course of 400 seconds. What is Lexi's velocity
d = 1600 meters
t = 400 seconds

4 m/s to the west

3

When an unbalanced force acts on an object, the force...

Changes the motion of the object

4

When something has speed in a certain direction it is called ___________.

Velocity

5

What is the SI unit for speed

M/s

6

A car goes from 0 m/s to 60 m/s in a period of 5 seconds find its acceleration.

12 m/s^2

7

Amy runs 2 miles south, then turns around and runs 3 miles north. What is her displacement?

1 mile

8

If Ben is walking 3 m/s to the north and Lauren is walking 3 m/s to the west, then which of the following is true

They have the same speed and different velocities

9

A dog runs with an initial speed of 7.5 m/s on a waxed floor. It slides to a stop in 15 seconds. What is the acceleration?

-0.5m/s^2

10

The rate at which velocity changes is called

Acceleration

11

What is the equation to find speed?

S=d/t

12

Scalar

Distance
Time
Speed

13

Vector

Velocity
Acceleration
Displacement

14

Contact force

Friction
Air resistance
Push/pull

15

Non-contact force

Gravity
Electrostatic
Magnetic