Static
Magnetism
Gravity
Parachutes
Grab Bag
100
When you rub a balloon on your hair, why does the balloon then attract your hair, even at a distance?
The Balloon has gained negative charge and the hair has become positively charged. Opposite charges attract.
100
The three metals that can be magnetized (turned into magnets)
What is iron cobalt and nickel
100
This will increase the gravitational force.
What is more mass or closer distance?
100
Draw a free body diagram of a skydiver right after he opens his parachute
FA arrow points up and is longer than FG which points down
100
Which of the following is a contact force:
Friction
Gravity
Magnetism
Static Electricity
What is friction?
200
Static electricity and magnetism are closely related. Explain why.
They are both forms of electromagnetism
They both are caused by the motion of positive or negatively charged particles
200
When we tested out a permanent magnet, we discovered that it was only attracted to materials that ____________________
contain iron, cobalt or nickel
200
How would your weight change on the moon, and why?
You would weigh 6 times less because the moon is 6 times less massive than Earth
200
When the skydiver's forces are balanced he has reached _______________________
What is terminal velocity
200
The Earth's magnetic field protects us from this harmful thing
What is the solar wind
or
What are charged particles from the sun
300
The type of electrical charge carried by tiny particles of matter surrounding the nucleus of atoms
What is an electron
300
This happens when the same poles come near each other.
What is repel?
300
These two scientists had very different conceptions of what gravity is
What is Newton and Einstein
300
A scrunched paper falls faster than an unscrunched one because of:
A. Gravity
B. Mass
C. Time
D. Air resistance
D
300
Why does a black hole suck in everything that comes near it?
It has very strong gravity because it has a lot of mass.
400
The word "static" in front of "electricity" literally means _________________________
Not moving or Stationary
400
We are attracted to the Earth due to the Earth's ________________________
What is gravity
400
Which of the following does NOT result in Magnetism?
A. The flow of electrons in an electrical circuit
B. Charged particles moving through outer space
C. The motion of electrons in atoms
D. The flow of water down the side of a mountain
D
400
What force does a person feel as he/she puts their hand out the window of a moving car?
Air Resistance.
400
Without this force, we would not have cell phones, speakers, head phones, or motors.
What is Magnetism
500
A buildup of electrical charge due to friction in the clouds can lead to ___________________________
What is lightning
500
Final Jeopardy
Which is a stronger force, magnetism or gravity (and by how much?)
Magnetism is 1036 times stronger.
That is 1,000,000,000,000,000,000,000,000,000,000,000,000
times stronger!
500
Einstein theorized that gravity was caused by the curvature of ____________________
What is spacetime
500
If there were no air (example: a vacuum chamber, or on the moon) and I dropped a feather and a hammer, which would hit the ground first?
They would hit at the same time.
500
What this graph shows us...
As distance increases, gravity weakens (exponentially)