DAILY TEST 2 SEMESTER 2
CLASS :
JUNIOR 1
SUBJECT : SCIENCE
I.
Fill
in the blank
- Any object can make a sound wave when it………………………….. ( vibrates)
- A vibration is……………
- Sound waves can travel in a……………………., a……………………….. and a…………………….
- Sound waves cannot travel in…………………
- Amplitude of wave is……………………
- Wavelenght wave is…………………..
- Frequency of wave is…………
- Period of wave is………………..
- An instrument which allows you to see the waves produced sound is…………………( oscilloscope)
- The loudness values of a road drill is……………………decibels (110)
- The loudness values of a whisper is……………………decibels ( 20 )
- The loudness values of a normal speechl is……………………decibels ( 55)
- The frequency of a sound is measeured in …………………………( hertz) Hz
- Luminous object is…………..
- Non-luminous object is…………………..
- Refraction is………….
- Draw the refraction of a light
- Dispersion of a light is…………..
- When a material is showing magnetic properties it is said tobe magnetized and is known as …………….
- The places where the magnetic force is strongest are called………………..
- Mangnetic field is………….
II.
Essay
- Draw a figure of a wave and show amplitude and wavelength Explain if an object moves a large distancefrom its rest position
- Explain if an object moves a short distance from its rest position
- Explain the relationship of frequency and picth of a sound
- 5xplain about luminous object and non-luminous object and 5 examples for each of them
- Why your eyes can see an object in a brightened room but in a darkened room cannot?
- Draw the formation of a shadow by small light source
- Draw the formation of a shadow by a large light source
- Draw the reflection of light from a plane mirror
- Explain the similarities and the diffenencess of the virtual image of your self that you see when you look in a plane mirror
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