Science 1
Which ruler have a higher frequency
A ruler with 11 inches hanging off a bench
A ruler with 6 inches hanging off a bench
A ruler with 4 inches hanging off a bench
The ruler with 4 inches hanging off the bench
What does sound and Light have in common
They both travel in all directions away from their source
Frequency in sound waves is best defined as
Number of vibrations per second
A translucent object allows all the light to pass through it
True or False
False
If I blow across the top of a bottle with water what will vibrate to produce a sound
The air particles will vibrate to produce a sound
I was scratching a rock and my finger nail could not scratch it so I decided to go for a copper coin and it scratched the rock what type of rock was that
Medium rock
What is elasticity in material
Elasticity is the ability of a material to change shape under a force and then return to its original shape when it loses its Force
What is heat conductivity
The ability of a material to transmit heat through it
Which mirror is inverted at a far distance and magnified at a close distance
Concave mirror
A sound cannot travel through a......
Vacuum
what is matter
Matter is everything that take up space and has mass
which Lens is upright and smaller
Concave lens
What are the three main states of matter
Solid liquid and gas
Transparency can be in three forms what are they
Opaque, translucent and transparent
When light hit a smooth, shiny, flat surface an .......
Image will be formed
I had a rubber and poured some liquid on it I went for something and come back i observed that there was no liquid on the rubber again what property of material was this
Absorbency
How do we know if a rock is very hard
A very hard rock scratches glass
A bottle with a lot of water produces a low pitch
True or False
False
If I had a flashlight and shined it on a bird with a wall behind it how will the shadow get bigger
The bird could move farther away from the wall, the flashlight could go closer to the bird
what is material
Material is the substances that make up everything in the world
What is pitch
Pitch is how high or low a sound is
I was on the field about to play football then the sun came out and four Shadows were formed around me I did not know why so please explain
There were tons of light rays coming from the Sun but only four of them hit your body creating four shadows
Luminous _____________ non luminous
Fire fly __________________ glass
Moon ___________________ mirror
Lighting _________________ aluminum foil
Which source of light is placed wrong
Moon
What is transparency in material
Transparency is the capability of a material to let the light through an objects are clearly seen
What is another name for secondary source of light
Illuminated or non luminous