Newtons Laws of Motion

Question 1

Force def

Answer 1

push or pull one object exerts on another

Question 2

What is force measured in?

Answer 2

Newtons (1N=1kg*m/s)

Question 3

Can multiple forces act on an object at one time?

Answer 3

Yes

Question 4

Net force def

Answer 4

The combining of forces when 2 or more forces act on an object

Question 5

Balanced forces def

Answer 5

Forces that are equal in size and opposite direction

Question 6

True or False: balanced forces cause a change in motion

Answer 6

false

Question 7

If a book experiences balanced force what will be the net force?

Answer 7

net force=0

Question 8

Unbalanced forces

Answer 8

Forces that are not equal in size and opposite in direction

Question 9

what does the net force cause when the force is unbalanced?

Answer 9

it will cause the object to move

Question 10

Newtons first law of motion?

Answer 10

An object will move at a constant velocity until a net force acts on it

Question 11

An object in motion will stay…..

Answer 11

…..in motion

Question 12

and object at rest will stay at rest unless………

Answer 12

……a force acts on it

Question 13

Inertia def?

Answer 13

the tendency of an object to resist a change in motion

Question 14

True or false; the more mass an object has the more inertia it has

Answer 14

true

Question 15

Friction def?

Answer 15

resistance to motion when 2 objects are in contact with one another

Question 16

The rougher the surface,…….

Answer 16

the greater the friction

Question 17

The greater the force pushing the two objects together,…..

Answer 17

the greater the friction

Question 18

the greater the surface area of the 2 objects touching,……

Answer 18

the greater the friction

Question 19

What are the types of friction?

Answer 19

Static friction, sliding friction, rolling friction

Question 20

Static friction def

Answer 20

forces between two surfaces that are NOT moving past each other

Question 21

Sliding friction def

Answer 21

force between two surfaces that one sliding past each other

Question 22

Rolling friction def

Answer 22

force between a rolling object and the surface it rolls on

Question 23

Air resistance def

Answer 23

resistance an object feels when traveling through air

Question 24

the greater the speed….

Answer 24

…..the greater the resistance

Question 25

the larger the object…….

Answer 25

…..the greater the resistance

Question 26

the flatter the object…….

Answer 26

…..the greater the resistance

Question 27

Gravity def

Answer 27

the attraction 2 objects have on each other

Question 28

law of universal gravitation def

Answer 28

any two masses exert an attractive force on eachother

Question 29

gravity depends; mass

Answer 29

the greater the mass the greater the gravitational attraction

Question 30

gravity depends; distance

Answer 30

the lower the distance the distance the gravitational attraction

Question 31

force causes all falling objects to have an acceleration due to gravity of…..

Answer 31

…..9.8m/s squared