Waves
Stars and Galaxies
Force and Motion
Properties of Matter
Energy
100
a wave that causes the medium to vibrate at right angles to the direction in which the wave travels.
What is a transverse wave?
100
apparent brightness.
What is the brightness of a star as it appears from Earth?
100
a force that opposes the motion of objects that touch as they move past each other.
What is friction?
100
the smallest particle of an element.
What is an atom?
100
a transfer of energy.
What is work?
200
a wave in which the vibration of the medium is parallel to the direction the wave travels.
What is a longitudinal wave?
200
the apparent change in position of an object with respect to a distant background.
What is a parallax?
200
the overall force acting on an after all the forces are combined.
What is net force?
200
two or more elements.
What is the amount of elements a compound can contain?
200
energy that is stored as a result of position or shape.
What is potential energy?
300
a material through which a wave travels.
What is a medium?
300
the core.
What is the sun's central region where nuclear fusion occurs?
300
the tendency of an object to resist a change in motion.
What is inertia?
300
parts of the mixture are noticeably different.
What is a heterogeneous mixture?
300
mass, height and acceleration due to gravity.
What does an object's gravitational potential energy depend on?
400
Hertz.
What is frequency measured in?
400
areas of gas in the photo-sphere that are cooler than the surrounding gas.
What is sun spots
400
the motion of a falling object after it is given an initial forward velocity.
What is projectile motion?
400
the ability of a solid to be hammered without shattering.
What is malleability?
400
energy cannot be created or destroyed.
What does the law of conservation of energy state?
500
amplitude.
What is the maximum displacement of the medium from its rest position?
500
the middle layer of the sun's atmosphere.
What is the chromosphere?
500
the object accelerates.
What is force that is unbalanced that acts on an object?
500
a solution, suspension or colloid.
What is a mixture that is classified by its size?
500
mechanical, thermal, chemical, electrical, electromagnetic and nuclear.
What are the major forms of energy?
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