Chapter 5
Chapter 6
Chapter 8
Chapter 9
Chapter 20
100
SI Unit for speed
What is m/s?
100
equation for Newton's second law of motion
What is F=mxa
100
device that makes work easier by changing the size or direction of force
What is a machine?
100
measures energy from the sun
What is a radiometer?
100
what do waves transfer?
What is energy?
200
an object that appears to stay in place that helps you to detect motion in another object
What is a reference point
200
air resistance causes the speed of a falling object to
What is decrease?
200
work done by a machine on an object
What is work output?
200
ability to do work
What is energy?
200
when 2 objects vibrate at the same frequency, this occurs
What is resonance?
300
type of force that causes an object to start moving
What is an unbalanced force?
300
a common unbalanced force acting on objects in motion
What is friction?
300
causes a machine to not be 100% efficient
What is friction?
300
When you eat fruits and vegetables, what type of energy are you taking in?
What is chemical energy?
300
what is a reflected sound wave called?
What is an echo?
400
the law of universal gravitation says that gravitational force is related to
What is mass and distance?
400
the direction in which a projectile is accelerated
What is vertically downward?
400
simple machines used by the Egyptians to build pyramids
What are inclined planes and levers?
400
energy cannot be created or destroyed
What is the law of conservation of energy
400
what type of waves cause the warmth you feel from the sun?
What are infrared waves?
500
2 things that speed depends on
What is distance & time?
500
astronauts in space appear weightless because of...
What is free fall?
500
the number of times a machine multiplies force
What is mechanical advantage?
500
what converts kinetic energy into electrical energy?
What is an electrical generator?
500
occurs when colors of paint are mixed
What is color subtraction?
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