Quarter 1
False
This is the energy stored in an object.
What is Potential energy
What happens when two objects have the same electrical charge?
They repel each other
This is a machine with few or no moving parts that is used to make work easier.
A person is standing on a bus. When the bus suddenly moves forward what happens to the person? Why?
The person moves backward because of inertia. An object at rest will remain at rest.
These are the two main gases found in air.
Newton's Third Law of Motion states...
For every action there is an equal and opposite reaction.
What is Electrical Energy
This is the force that attracts objects together.
What is Gravity.
What is the equation for Newton's Second Law of Motion?
F = ma
What is it called when water molecules are attracted to each other?
Cohesion
What is the Law of Conservation of Energy?
Conduction, Convection, Radiation
This is a special form of friction that slows down a parachute.
What is Air Resistance.
What is the difference between mass and weight.
Mass is the amount of matter in an object, weight is a measure of the pull of gravity on the mass.
Inertia is an object's tendency to...
resist changes in motion
The faster an object moves the _________ kinetic energy it has.
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What is light energy made of?
A photon which is a particle, and a wave
This is a mechanical wave that carries sonic energy through a medium.
What is a sound wave.
Two examples chemical energy are...
Fossil fuels, Food we eat ...
What kind of math did Isaac Newton invent?
Calculus
The energy stored in the bonds between atoms.
What is Chemical Energy.
This famous scientist's experiment at the Leaning Tower of Pisa demonstrated the law of gravity that states “all objects fall the same distance in the same amount of time, no matter what their mass is.”
Who is Galileo.
What is an object's center of gravity?
The point at which all of an object’s weight is concentrated.
What are the two properties of light energy?
Electric and Magnetic fields