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Matter Matters
Changes Matter
Motion Matters
Newton Matters
Energy Matters
100
Matter that always has the exact same composition.
What is a substance?
100
The shape or size may change, but the composition stays the same.
What is a physical change?
100
Has magnitude and direction.
What are vectors?
100
The equation that relates force to acceleration and mass.
What is F=ma
100
The SI unit of energy and work.
What is the joule?
200
The two categories pure substances can be classified as.
What are elements and compounds?
200
Iron and oxygen create rust because they are highly ___
What is reactive?
200
The difference between speed and velocity is that velocity includes this.
What is direction?
200
The sum of all the forces acting on an object.
What is the net force?
200
The kinetic energy of an object is proportional to the square of its _____
What is its speed?
300
The smallest part of an element that has the same identity as the element.
What is an atom?
300
Something that burns in the presence of oxygen.
What is a flammable substance?
300
A distance time graph represents this measurement.
What is velocity.
300
A fluid force that acts in addition to gravity on a falling object.
What is air resistance?
300
When a pole-vaulter flexes the pole this type of energy increases in the pole.
What is the elastic potential energy?
400
A mixture whose substances are evenly distributed.
What is a homogeneous mixture?
400
These are three clues of a chemical change.
What is color change, production of a gas, and formation of a precipitate?
400
A velocity time graph represents this.
What is acceleration.
400
The force weight is the product of mass and this.
What is acceleration due to gravity?
400
When an apple falls out of a tree the initial kinetic energy and the final potential energy are equal to this.
What is zero?
500
A mixture whose parts are noticeably different.
What is a heterogeneous mixture?
500
The clue that indicates that a cake baking in the oven is an example of a chemical change.
What is production of a gas?
500
The straight line from one point to another.
What is the displacement?
500
The tendency of an object to resist a change in motion.
What is inertia?
500
The sum of the kinetic and the potential energy of an object.
What is mechanical energy?