Download Forces and Interactions Study Guide FI1

Forces and Interactions Study Guide
FI1- I can define electricity and magnetism.
1) What is electricity?
2) What is magnetism?
FI2- I can explain the relationship between electricity and magnetism.
3) How are electricity and magnetism related?
4) How can the strength of a magnet be determined?
5) How can magnetism be produced from electricity?
FI3- I can explain interactions and magnitudes of electric and magnetic forces.
6)
7)
8)
9)
10)
11)
What happens when two negative charges come close to each other? Why?
What happens when two opposite charges come close together? Why?
What happens when two of the same poles of magnets come close together? Why?
What happens when two opposite poles of magnets come close together? Why?
Draw the magnetic field lines of two north poles close together.
Draw the magnetic field lines of two opposite poles together.
FI4- I can use data to determine factors that affect the strength of electric and magnetic forces.
Look at the data tables that recorded the results of two experiments. In Experiment 1 two electrically
charged objects, with the same charge, are held varying distances away and the result is recorded. In
Experiment 2 two north poles of magnetic fields are held varying distances away and the results are
recorded.
Experiment 1- Electric Force
Trial
1
2
3
4
5
6
7
8
9
Distance
10cm
20cm
30cm
10cm
20cm
30cm
10cm
20cm
30cm
Charge
+1
+1
+1
+2
+2
+2
-1
-1
-1
Temperature
70
70
70
70
70
70
60
60
60
Result
4cm
2cm
1.5cm
8cm
4cm
3cm
4cm
2cm
1.5cm
Density
3.0
3.0
3.0
Temperature
70
70
70
Result
4cm
2cm
1.5cm
Experiment 2- Magnetic Force
Trial
1
2
3
Distance
10cm
20cm
30cm
4
5
6
7
8
9
10cm
20cm
30cm
10cm
20cm
30cm
6.0
6.0
6.0
3.0
3.0
3.0
70
70
70
120
120
120
8cm
4cm
3cm
3cm
1.75cm
1cm
Questions:
12) What factors affect the strength of electric forces? How do you know?
13) What factors affect the strength of magnetic forces? How do you know?
14) Why will a small wire not repel a like charge object as far as a bigger wire connected to the same
battery?
15) Do you think extremely cold temperatures will affect the strength of magnetic fields? If yes,
how will it affect it?
16) Why does heat affect the strength of magnetic fields?
FI5- I can describe electromagnets and electric motors.
17)
18)
19)
20)
What is an electromagnet?
What do you need in order to construct an electromagnet?
What is an electric motor?
What do you need in order to construct an electric motor?
FI6- I can explain how to modify electromagnets and electric motors.
21) Draw a weak electromagnet and describe how you can make it stronger.
22) Draw a strong electric motor and describe how you can make it weaker.
FI7- I can define gravity.
23) What is gravity?
24) Describe gravity as an attractive force.
FI8- I can explain the relationship between mass and gravity.
25) How are mass and gravity related?
FI9- I can list noncontact forces.
26) What are the three major non-contact forces?
FI10- I can explain how noncontact forces operate.
27) How does gravity work? Give an example.
28) How does magnetism work? Give an example.
29) How does electricity work? Give an example.