Formulas
What is the formula for distance?
Distance equals speed times time (D=ST)
What is Newton's First Law?
An object in motion (or at rest) will stay in motion (or at rest) unless acted on by an outside force (inertia)
What is net force?
The sum of all the forces acting on an object
What is a wave?
A wave is a repeating disturbance or vibration that transfers or moves energy from place to place
What is a mechanical wave?
A wave that requires a medium to travel through
What is the equation for speed?
Speed equals distance over time (S=D/T)
What is Newton's Second Law?
Force equals mass times acceleration (F=ma)
What is an unbalanced force?
When the forces acting in opposite directions are not equal so the object moves in the directions of the greater force
What is wavelength?
Wavelength is the distance between the crests of a wave
What is an Electromagnetic wave?
What is the equation for time?
Time equals distance over speed (T=D/S)
What is Newton's Third Law?
Every action has an equal and opposite reaction
What is a balanced force?
Occurs when the forces acting in opposite directions are equal so the object does not move.
What is a medium?
Medium is a material through which waves can travel
What are longitudinal waves?
Waves that vibrate parallel to the direction the wave is traveling
A car travels for three hours going 40 miles per hour. How far did the car go?
120 miles
Which law does this demonstrate? You blow up a balloon and then release it without tying it. The balloon flies around the room as air rushes out.
Newton's 3rd Law
What is friction?
The force that occurs when an object rubs against another object
What is frequency?
Frequency is a measure of how many waves pass a point in a certain amount of time
What are transverse waves?
Waves that vibrate perpendicular to the direction the wave is traveling
A biker does a route that is 4 miles long at a speed of 8 miles per hour. How long does it take the biker to complete the course?
.5 hours, or 30 minutes
Which law does this demonstrate? A baseball player swings hard at a pitch. The harder they swing, the farther the ball travels when hit.
Newton's Second Law
What is inertia?
An objects resistance to change
What is amplitude?
Amplitude is a measure of the distance between a line through the middle of a wave and a crest or trough
List at least 3 types of waves on the Electromagnetic (EM) Spectrum.
Radio, Microwaves, Infrared, Visible Light, Ultraviolet, X-ray, Gamma