Midterm

Question 0

What is the rate at which you travel a certain distance

Answer 0

Speed

Question 1

What is a quantity that has both magnitude and speed

Answer 1

Vector

Question 2

What is the change in displacement divided by the change in time

Answer 2

Velocity

Question 3

What is the difference between speed and velocity

Answer 3

Speed only has magnitude velocity has magnitude and direction

Question 4

What is acceleration

Answer 4

The rate of change in velocity

Question 5

What happens after two seconds of you drop your pumpkin off the roof?

Answer 5

Accelerates -20m/s

Question 6

If you throw something straight up at 20 m/s after 1 second it is traveling at_______?

Answer 6

10 m/s

20-10=10

Question 7

If you throw an object up at 1m/s and Sally throws one up at 3 m/s how do the distances compare

Answer 7

Maximum hieght is 9x higher

Question 8

What is the force of gravity always equal to

Answer 8

Mg

Question 9

When you fire a bullet sideways and drop one which hits the ground first

Answer 9

Same time

Question 10

What happens if you drop a bottle outside you car window with no air resostance

Answer 10

Lands next to car

Question 11

With oar resostance where will the bottle land

Answer 11

Behind the car

Question 12

An objects resistance to the change in motion is called _____

Answer 12

Inertia

Question 13

What is the measure of an objects inertia

Answer 13

Mass

Question 14

What happens when there is no net force on an object

Answer 14

Equilibrium

Question 15

What happens if you increase the angle at which you are pulling an object

Answer 15

Fpx decrease and fn decreases

Question 16

If you increase the angle on a frictionless ramp the normal force will_______

Answer 16

Go down

Question 17

What does friction depend on

Answer 17

Force and type of surface

Question 18

Friction doesn’t depend d on_______

Answer 18

Surface area or velocity

Question 19

Is static friction = to less than or greater than your push

Answer 19

Greater or equal to

Question 20

Is kinetic friction less than or greater then your push

Answer 20

Less than

Question 21

What happens to friction if you pull with a greater angle

Answer 21

It goes down

Question 22

What is momentum

Answer 22

Inertia in motion

Question 23

What does impulse equal

Answer 23

Force x time

Question 24

What | Is an in elastic collision

Answer 24

Stick together

Question 25

What is an elastic collision

Answer 25

Start apart go apart

Question 26

Explosion

Answer 26

Start together go apart

Question 27

What is work equal to

Answer 27

Force times distance

Question 28

Power = _______

Answer 28

W/t

Question 29

In ramp qu agitations what does fgx equal and what does fgy equal

Answer 29

``` Fgx= sin Fgy= cos ```

Question 30

In pulling problems what does fpx= and fpy=

Answer 30

Fpx= cos | Fpy=sin

Question 31

What equation do you use to find fgx on a ramp problem?

Answer 31

Fgx= fg sin(angle)