Newtons Three Laws
chemical reactions and equations
chemical formula
balance and unbalanced forces
sun, earth moon
100
What is newtons 2nd law?
FORCE=MASS X ACCELERATION
100
How is a chemical change different from a physical change?
a chemical change creates a new substance
100
What is the number in front of the element called? And what do you do with it?
coefficient and multiply it by the atoms of each element in the equation
100
If my net force is zero, do I have a balance or unbalanced net force?
Balanced Net Force
100
What causes us to have day and night? What causes us to have seasons?
Earth's rotation on its axis, which takes approximately 24 hours. the Earth's tilted axis (approximately 23.5 degrees) as it revolves the Sun.
200
Whats newtons first law?
An object at rest will stay at rest unless and unbalanced force acts upon it.
200
The reactants are on the left side of the chemical equation.
true
200
How many elements are in C6H12O6?
3
200
what is the net force?
5 N Left
200
What would happen if earth rotated faster on its axis?
The days would be shorter
300
what is newtons third law?
Every Action has a reaction; paired equal and opposite forces.
300
Is melting butter for popcorn a chemical or physical change?
physical change
300
How many atoms of each element are in this chemical formula?
CH4COOH2
2 Carbon atoms, 6 Hydrogen atoms, 2 Oxygen atoms
300
calculate the Net Force?
60 N right
300
Which Moons create spring tides?
Full Moon and New Moon
400
A 256 kg bike accelerates at 4 m/s2. what was the force?
5,024 N
400
How many atoms in all are in a molecule of serotonin?
C10H12N2O
25
400
How many atoms of carbon (C) are in 5C6H12O6?
30
400
When a skydiver is falling at a constant speed, are the forces acting on the skydiver balanced or unbalanced?
Balanced
400
What season is it at position 4 in North America?
winter
500
If the net force of a box is 325 N and the box is accelerating at 50 m/s2, what is the mass of the box?
6.5 g
500
Is this balanced?
2HgO → 2Hg + O2
yes
500
How many atoms are present if there is no subscript following the element symbol?
only 1
500
A force acting in the opposite direction of an object in motion
Friction
500
What causes tides? And how often do high and low tides occur?
the gravity pull from the moon and they happen twice a day.