Newton's Laws
What is another name for Newton's 1st Law?
Law of Inertia
How do you find net force for forces going in opposite directions? Same direction?
Opposite = Subtract
Same = Add
What does Newton's 2nd Law state?
objects acceleration depends on force and mass
C₆H₁₂O₆
How many elements?
How many atoms of each element?
C = 6
H = 12
O= 6
What does the law of conservation state?
Atoms cannot be created or destroyed and both sides must be equal
What does Newton's first Law state?
An object at rest will stay at rest or an object in motion will stay in motion unless acted on by an unbalanced force
In a game of tug a war Team A pulls with 200 N and Team B pulls with 200 N. What is the net force?
0 N
What do we write on our braindump about Newton's 2nd Law?
More force = More accleration
Al₂(SO₄)₃
How many total atoms?
al = 2
s = 3
o = 12
2H₂ + O₂ → 2H₂O
Does this follow the law
Yes
What does Newton's 3rd Law state?
Every action has an opposite and equal reaction
A player kicks a ball with 15N forward and air resistance pushes back with 3N. What is the net force?
15N - 3N = 12N forward
A cart has a mass of 5 kg and accelerates at 3 m/s². What is the force acting on the cart?
Force = 15N
2Ca(OH)₂
Ca = 2
O = 4
H= 4
Na + Cl₂ → NaCl
Does this follow the law?
No
When a car suddenly stops, your body keeps moving forward until the seatbelt applies a force and stops you. What law would this apply to?
Newton's 1st Law
You push a box to the right 10N and someone else is pushing the box to the left with 30N. What is the net force?
30N to the left
A force of 20 N is applied to an object with a mass of 4 kg. What is the object's acceleration?
20/5 = 5
Ca₃(PO₄)₂
Ca = 3
P = 2
O = 8
Mg + O₂ → MgO
Does this follow the law?
No
When a rocket launches, gases push downward out of the rocket, and the rocket is pushed upward into the air. What law would this apply to?
Newton's 3rd Law
You push a box to the right with 10 N of force. Friction pushes left with 4 N. What is the net force?
10N - 4N = 6N
A 8 kg object accelerates at 2 m/s². What is the net force?
16N
H₂ + O → H₂O
Does this follow the law of conservation of mass?
Yes
Make this follow the law
78g + 42G --> _______
120g