Newton's Laws

Question 1

Forces?

Answer 1

Push or pull; interactions between two things

Question 2

Unit of force?

Answer 2

Newton

Question 3

Newton’s 1st law

Answer 3

Law of inertia: an objects ability to resist change

- an object at rests stays at rest an object in motion stays in motion

Question 4

Inertia

Answer 4

The mass of object- stuff

Question 5

Newton’s second law

Answer 5

Acceleration is proportionate to force f=a
Mass is inversely proportionate to force f=1/m
A=f/m

Question 6

Formula of second law

Answer 6

F=ma

Question 7

Units of force

Answer 7

Weight( force due to gravity)
Force
Lbs
Newton

Question 8

Units of mass

Answer 8

Inertia
kg
Etc.

Question 9

Difference between mass and weight?

Answer 9

Mass is inertia and weight is the force due to gravity

Question 10

Weight

Answer 10

W=mg

Question 11

Frictional force?

Answer 11

Force that opposes motion

Coefficient is less than 0

Question 12

Newton’s 3rd law

Answer 12

For every action, there’s an equal and opposite reaction

Question 13

Multiple mass system steps

Answer 13

1. Coordinate system
2. Free body diagram
3. Sum of Fx and y directions( x is direction of motion)
4. Solve for unknown

Question 14

Period/radius ratio formula

Answer 14

G(mass earth)/4 pi^2=r^3/T^2