Waves
Newton's Laws
Electromagnetic Spectrum
Motion
Magnets
100
What is the top of the wave called?
Crest
100
How many laws of motion did Newton discover?
3
100
How many waves are in the electromagnetic spectrum?
7
100
What do you do to find the speed of an object?
Distance divided by time
100
What do we call the two ends of a magnet?
North and South or Positive and Negative
200
What is the distance between two waves called?
Wavelength
200
What does Newton's first law say?
An object at rest stays at rest, and an object in motion stays in motion unless acted upon by an outside force
200
Which type of waves is sunscreen protecting us from?
Ultraviolet (UV)
200
What is the speed in miles per hour of an object that traveled 81 miles in 9 hours?
9 miles per hour
200
What would happen if I had a north end and a south end of a magnet close together?
They would attract
300
What will the frequency be if the wavelength between two waves is short?
High frequency
300
What does Newton's third law of motion say?
For every action there is an equal and opposite reaction
300
Which wave would have a longer wavelength, Radio waves or Microwaves?
Radio waves
300
How many minutes does it take to travel 60 miles if you travel 3 miles per minute?
20 minutes
300
What do we call the invisible lines that form a field around the magnet?
Magnetic field
400
What is this type of wave called?
Longitudinal wave
400
What does Newton's second law say?
Force = Mass X Acceleration
400
Which wave would have a higher frequency, X-rays or Gamma rays?
Gamma rays
400
How far in meters did you travel if it takes you 2 hours if you walk 7.5 meters per hour?
15 meters
400
What did the iron fillings show us about the magnet?
The magnetic fields
500
What are the three parts of this wave called?
Wavelength
Compression
Expansion
500
I have two objects, one with a mass of 3 and one with a mass of 7. If I want the objects to have the same acceleration, what will be true about the force (will the forces be the same or different, and if so, how will they be different)? Why (which law)?
More force is needed for the object with a mass of 7, because Newton's second law says that the more mass something has, the more force is needed to have the same acceleration
500
Tell me one use for EACH of the waves in the electromagnetic spectrum.
Radio waves= listen to the radio
Microwaves= heat up food
Infrared radiation= feel heat
Visible Light= helps us see
Ultraviolet= gives us a stun tan
X-rays= lets us see bones
Gamma rays= sterilize medical equipment
500
What is the speed in meters per minute that it takes to drive 1.5 decimeters if I drive for 3 minutes
5 meters per minute
500
Why did the magnets on the pencils look like they were floating?
The two magnets were repelling each other