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Mass is measured in what?
Grams, kilograms ect.
Mass definition
The amount of substance/matter in an object
What is matter/what is matter made of?
Atoms
Is mass affected by gravity?
No
As the mass ____ the acceleration ___.
As the mass INCREASES the acceleration DECREASES.
Newtons are the measurement of what?
Force, gravity, and weight
Acceleration solution
m/s2
Gravity definition
The attraction between 2 masses
Definition of weight
The gravitational pull on an object
Does weight change?
Yes. Example: being on earth then going to the moon
Motion meaning
A change in position over time
Balanced meaning
No movement or continuous movement
Net force meaning
The sum of all forces on an object
Force meaning
A push or a pull on an object in a certain direction
what’s is force represented by?
arrows
Unbalanced meaning
speeding up or slowing down or starting or stopping (a change in motion)
Unwanted direction
friction
Friction meaning
A force that opposes motion between 2 surfaces of objects that make contact
Helpful friction
Example: making a fire, rosining a bow ect.
unhelpful friction
bike chain rubbing together which causes chain to wear away
Newtons first law
Inertia- an object in motion will stay in motion unless acted on by an outside force.
Newtons second law
F=ma- force is equal to mass times acceleration
Newtons third law
Action reaction- an action will have an equal and opposite reaction
Acceleration meaning
Change in speed over change in time
what does 0 sorta stand for?
It stands for balanced since there’s nothing happening
two arrows that are equal to each other are?
they are balanced because nothing happens
How much force is the wall pushing back?
10N, because the wall and the boy aren’t moving this is also a balanced force.
I’m pushing the box which is being shown with the red arrow, which arrow shows friction?
Arrow D shows friction, because friction opposes movement.
What’s velocity?
Velocity is speed + direction
Is this person changing velocity?
Yes, because they’re going in a circle they’re changing direction
True or False? Acceleration only exists when there’s a change in velocity.
True
How do you calculate distance?
speed x time
What is energy?
It’s the ability to do work or to cause change
Potential energy meaning
Stored energy
What are examples of potential energy?
A raised object, A drawn bow etc.
True or false? Changing the “y” axis of an object is potential energy.
True such as raising a book of the ground
Kinetic energy meaning
active energy
What are examples of kinetic energy?
A person walking, a moving car, etc.
True or False? Energy can be created and be destroyed.
False, it can only transform from one form to another.
Is mechanical energy P or K?
Both
Is Radiant energy P or K?
Kinetic
Is Chemical energy P or K?
Potential
Is Electrical energy P or K?
Kinetic
Is Nuclear energy P or K?
Both
Is Thermal energy P or K?
Kinetic
Thermal energy is what?
It’s heat
Examples of thermal energy
Fire, a hot cup of coco etc.
Thermal Energy is the biggest loser of all the energy’s. True or False?
True, because it’s the lowest point of energy
Nuclear energy is what?
Fusion or fission
Fusion means?
To fuse (combine)
Fission means?
To split
Examples of nuclear energy
The sun is constantly going under nuclear fusion
Electrical energy is what?
It’s moving electrons
Examples of electrical energy
Wires, power outlet, etc.
Chemical energy is what?
It’s the bond between tiny parts of molecules
Examples of chemical energy
Coal, your body converting food into energy, batteries, etc.
Radiant energy is what?
It’s the movement of light
Examples of radiant energy
Sun’s rays, car keys, x-rays, etc.
Mechanical energy is what?
It’s when an object is moving or in position
Examples of mechanical energy
running, writing, etc.
What are the types of energy being shown?
Chemical, electrical, radiant and a little bit of thermal
When you heat up food in a microwave there is thermal energy being shown, how?
because the molecules of the food are vigorously vibrating which heats up your food
At which point does the diver have the least amount of potential energy?
4
At which two points is the potential energy most likely the same?
1 and 3
Speed meaning
Change in the position of an object per unit m/s
Time meaning
Measures the duration of an event
Distance
How far an object travels from its starting point
Note 
Flashcard (107)