Studied by 12 people
This is the force that acts up to support any object on a surface.
Contact Force
The force directed towards the center of any mass.
Gravity
The pull from the Moon's gravity.
Tidal Force
This is the force of gravity on an object.
Weight
This is a kind of frictional force that is caused by a moving object having to push against particles in the air.
Air Resistance
What is the gravitational force of the earth?
10 N/kg
What is weight measured in?
Newtons
What is mass measured in?
Kilograms / kg
Mass is...
the quantity of matter in an object
Mass is ....... even if the strength of gravity changes
constant
Formula to find weight
mass x gravitational force
Formula to find mass
weight ÷ gravitational force
A cloud of dust and gas in space is called....
nebula
How are stars formed?
Stars are formed by nebulas and gas.
Energy is...
the ability to do work
How can energy be used to do something?
Energy can be stored or transferred to be able to do something.
Name the energy forms learned in this chapter.
Kinetic, Chemical, Thermal, Elastic Potential, Gravitational Potential, Sound, Light energy.
The Law of Conservation of Energy states that energy cannot be ....... or ........
The Law of Conservation of Energy states that energy cannot be created or destroyed.
Kinetic Energy is
energy in moving objects
Chemical Energy is
a form of stored energy
