Magnetic 1
Magnetic 2
Magnetic 3
Electrical Circuit
100
Mention 4 materials that can be attracted closer to the magnet!
Clip paper, key, copper coin, iron nail.
100
A bar magnet has a ______ and south pole.
North pole
100
Which of the following metals can be mixed together to make a magnet at a factory?
a. iron
b. boron
c. copper
d. all of these answer are correct
d. all of these answer are correct
100
Mention the name of the circuit symbol below!
W = bulb / lamp
X = cell / battery
Y = motor
Z = buzzer
200
Answer the fisrt question below!
Magnetic: Paper clip, spoon, board pin
Non-magnetic : Pencil, ruler, eraser and shirt button
200
Answer: C
200
How can a compass be used?
a. to produce electricity
b. to hang a paper on board
c. to tell which direction is north
d. to hold a door close
c. to tell which direction is north
200
Complete the statement below by looking at the circuit and predicting what will happen for each situation.
If another lamp is added to the circuit, I think ________________________
The brightness of the lamp will be dimmer
300
Answer the second question of the picture below!
Repel
Repel
Attarct
300
Only _____ substances can be attracted to a magnet
Magnetic
300
All of the following are true about magnets, EXCEPT!
a. they are useful tools
b. the magnetic can't be decrease
c. the magnetic can be decrease
d. they have a north and south poles
b. the magnetic can't be decrease
300
Which lamp will light?
The answer is A and B
400
Observe the pictures A and B given in the given figure carefully. The cars have magnets mounted over them with the poles of the magnets marked.
What will happen in picture A and picture B?
In A, the cars 1 and 2 will come closer.
In B, the cars 3 and 4 will move away.
400
Magnets use metal _____ to make electricity.
a. wires
b. speakers
c. light bulbs
d. rock
a. wires
400
What invisible force causes magnets to pull certain objects towards them?
Magnetic field
400
This circuit consists of one cell, two bulbs, and an on switch as shown in the picture. Redraw the circuit on the board, and determine how is the direction of the current flow?
Current will flow from the positive charge of the cell, to the switch, to the bulb and the current will be end at the negative charge of the cell.
500
Tina conduct an experiment to test 6 different magnet and bring it closer to steel pin. Here are the result.
-Magnet : A B C D E F
-Number of pin attracted by magnet : 10 15 35 25 55 20
a. Make a bar chart based on the result on a white board!
b. Determine which magnet is the strongest!
a. student will make a bar char on the whiteboard.
b. The strongest magnet is magnet E.
500
Which of the following can a magnet NOT be used for?
a. to find a directions
b. to hold a purse closed
c. to pick up papers
d. to hang paper on refrigerator
c. to pick up papers
500
What stone was used as natural magnets for people long ago?
a. lodestone
b. crystal
c. coal
d. micah
a. lodestone
500
Answer two questions below! And redraw the picture at number 1!
1. Battery cell --> battery holder --> wires --> bulb / lamps --> crocodile clamps --> switch
2. -Insulator
-Conductor
-Conductor
-Isolator