The image shows a satellite in orbit around earth. What force is responsible for keeping the object in orbit?
Gravity
Do opposite charges attract or repel?
Attract
The area around a magnet where the force of magnetism occurs is called a . . .
Magnetic field
What three items are needed to create an electromagnet?
Battery
Copper wire
Iron nail
Electromagnet
How does mass affect gravity?
As mass increases, gravity increases.
Electric field line arrows always go from. . .
Positive to negative
Or
Negative to positive
Positive to negative
Where are magnets strongest?
At the poles
True or False: You can use a magnet to move electrons and create an electric current. What are two ways to increase the strength of an electromagnet?
True
What did we build to help the team get the elevator working again?
Motor
How does distance affect gravity?
As distance increases, gravity decreases.
Are these ions attracting or repelling? How do you know?
They are repelling because they are moving away from each other.
What would happen to these two magnets?
What are two ways to increase the strength of an electromagnet?
Use a stronger battery
Add more coils
Tighten the coils
What did we use to represent the demobats in the lab?
Washers
TRUE OR FALSE?
A 1000 kg hippo feels more gravitational pull than a 100 g mouse.
True
Which one of these charges is stronger? How do you know?
The second ion is stronger because it has more field lines.
Magnetic field lines always extend from . . .
North to South
or
South to North
North to South
If you disconnect the wire from the battery, what will happen to the magnetic field?
It will go away.
How did we create a magnetic field without a magnet?
We created an electromagnet--ran electricity through a coil of copper wire looped around an iron nail.
Which of the following is dependent on the force of gravity: Mass or Weight?
Weight
What are the two factors that can impact the strength of an electric field?
Size of the charge
Distance between charges
What's happening here? How do you know?
The magnets are attracting because the field lines are connecting between the two poles.
How can you create an electric field with a magnet?
Move a magnet through a coil of copper wire
In the clip we watched on Wednesday, Steve kept saying they were stuck in a ________________ elevator.
Russian