Unit 1
Unit 2
Unit 3
Unit 4
Unit 5
100
who proved that the sun was the center of the solar system?
Galileo Galilei deafened Copernicus's theory that the sun was the center of the solar system
100
what is contact force and friction?
contact force is a force that acts through touch. Friction is a force that resists motion
100
how do you solve a problem with Newton third law?
Net Force=First Force+Second Force
100
who discovered that the sun was indeed the center of the solar system?
Galileo Galilei defend Copernicus's claim that the sun was the center
100
what is a universe
a universe is made up of all of the matter and energy in space
200
the distance and direction of an object’s change in position from its starting point
displacement
200
position-time graph
200
what is a magnetic force?
the force applied by a magnet
200
name three physical properties.
Mass, Volume, and Density
200
name one moon phase.
new moon
300
how do you calculate displacement?
displacement=positionfinal−positioninitial or Δx=xf−xi
300
what is Newton's first law of motion
An object at rest will remains at rest, unless an object in motion remains in motion at a constant velocity, unless acted upon by an unbalanced force.
300
what is Kinetic energy and energy?
Kinetic energy is form of energy related to an object’s mass and speed
energy is the ability to cause change
300
a atom is what?
a atom is the smallest unit of matter that has the chemical properties of an element
300
what effects the waves?
the moon
400
what is Acceleration?
a change in velocity over time
400
What are the equation for force, acceleration, and mass
Force=mass⋅acceleration
acceleration=Force divided by mass
mass=Force divided by acceleration
400
what is a reflection and refraction?
reflection: the sending of a wave back toward its source
refraction: a change in a wave's direction when moving from one medium to another
400
name two types of planets?
Rocky planets and Gas planets.
400
how are seasons formed?
due to Earth’s axial tilt