Science Review for PATD_4

Science Review for PATD_4

By Yoshy Faweta

• Explore the forces between magnets and know that magnets can attract or repel each other

• ​Know that magnets attract some metals but not others​

​How Magnet Work

Multiple Choice

Property of magnet shows by this picture is ...

• magnet has two poles

• the strongest power of attraction are magnet's poles

• like poles repel each other

• unlike poles attract each other

Multiple Select

Which pictures show repel action?

(Choose more than one answers.)

Multiple Select

If magnet that hold by a hand is moved closer to magnet on the toycar, which toycar will move backward?

(Choose more than one answers.)

Multiple Choice

There are 3 magnets, magnet A, B and C.

Magnet A and B attract each other but magnet B and C repel each other as shown in the picture.

if poles of magnet A are known, what pole that represented by Y?

• North

• South

Multiple Select

Which of the following objects are magnetic?

(Choose more than one answers.)

Multiple Select

Which of the following are non-magnetic?

(Choose more than one answers.)

Using Magnet they can be separated (dipisahkan)

​

The iron will stick to magnet but the sand will left behind​

​

​Iron filling (serbuk besi) commonly mixed up with sand

​

• Construct complete circuits using switch, cell (battery), wire and lamps

• ​Explore how an electrical device will not work if there is a break in the circuit

• Know that electrical current flows and that models can describe this flow​

​Electric Circuit

Multiple Choice

Control the flow of electric current is the function of....

• battery

• wire

• switch

• bulb

Multiple Select

The circuit that will work is....

(choose more than one answers)

Multiple Choice

Removing one battery from the circuit below will cause....

• brighter light

• dimmer light

• the same brightness

Multiple Select

An object that can replace switch is ....

Fill in the Blanks

Fill in the Blanks

• Explore how sounds are made when objects, materials or air vibrate

• Investigate how sound travels through different materials to the ear

• Measure the volume of sound in decibels with a sound level meter

• ​Know the way to muffle the sound

• ​​Investigate how sound travels through different materials to the ear

​Sound

​

Multiple Choice

The musical instrument that produce sound by vibrating its skin is....

Multiple Select

Musical instrument that produce sound by vibrating its air column is....

Choose more than one answers.

• flute

• trumpet

• violin

• cymbal

Multiple Choice

In this picture, sound can travel through ....

• water

• liquid

• air

• solid

Multiple Choice

Ahmad is at swimming pool. There is music coming out from a loudspeaker beside the pool.

How can Ahmad hear the music when he is underwater?

• music travels through water and then through the air and reach Ahmad ear

• music travels through air and then through the water and reach Ahmad ear

• music from speaker travels through the floor and reach Ahmad ear

• music come out from the water and reach Ahmad ear

Multiple Choice

Picture that shows sound travels through air is ....

Multiple Choice

The volume of MRT sound is about ... dB.

• 105

• 125

• 150

• 60

Multiple Choice

The highest pitch is produced by string ....

• X

• Y

• Z

When we pluck a string in guitar the string will vibrate so the shortest string will produce the highest pitch​

And thinner (tipis) string will produce the highest pitch​

Multiple Choice

If we tap or hit the bottle, the highest pitch will be produced by bottle ....

• A

• B

• C

• D

When we tap or hit this bottle the water will vibrate so the smallest amount of water will produce the highest pitch​

Multiple Select

The correct statement about this picture is ....

(Choose more than one answers.)

• the longer the air column the higher the pitch

• the longer the air column the lower the pitch

• the shorter the air column the lower the pitch

• the shorter the air column the higher the pitch