Energy
Both work and energy are measured in...
Joules
How many simple machines are there?
6
What variable affects the period of a pendulum?
String length
The color you see is the color that is...
Reflected
The smallest unit of an element is...
An atom
What is potential energy?
The energy possessed by a body of virtue of its position relative to others, stresses within itself, electric charge, and other factors.
Which simple machine would stairs be an example of?
Inclined plane
A single disturbance that moves from point to point through a medium is called a...
A pulse
If all light waves are reflected off a medium, then what color will be perceived?
White
What charge does an electron have?
A negative charge
What is Kinetic Energy?
Energy which a body possesses by virtue of being in motion.
A push or pull of an object that causes it to be still
Force
When the particles of a medium are vibrating at right angles to the direction of energy transport, then the wave is a___ wave.
Transverse
What part of the visible spectrum has the highest energy?
Color with the highest frequency, violet.
False
Which form of energy does flowing water posses?
gravitational energy
What do you call a machine made up of two or more simple machines?
Compound/complex machine
The main factor which affects the speed of a sound wave is the ___.
Properties of the medium
An electromagnetic wave is a wave that...
Is created by the vibration of an electric charge
If an atom loses an electron then...
The atom becomes a positive ion
Energy is the ability to?
Work
What is the definition of mechanical advantage?
A ratio of the force produced by a machine to the force applied to it.
As a wave crosses across a boundary into a new medium, which characteristic of the wave would NOT change?
Frequency
What are the primary colors of light?
Red, Green and Blue
True or false. A negatively charged object has lost protons.
True