Category 1
What color wavelength is longest?
Red
What is a unit of frequency?
Hertz (Hz)
True or false: white light is made of all the colors of light mixed together.
True
The matter that a wave travels through is called...
Medium
What is a clear, curved piece of material that refracts light?
Lens
A disturbance that transfers energy through matter or space.
Wave
What describes an object that scatters light that is transmitted through it?
Translucent
A force that keeps some objects from sinking is called...
Buoyant
True or false: The larger the distance between two objects with opposite charges, the larger the strength of the electrical force between them.
False: smaller distance.
What causes objects to slow down or stop due to the resistance of motion of touching surfaces?
Friction
True or false: The larger the mass of an object, the larger of force of gravity between the object and another object.
True.
If a straw is placed in a glass of water and appears to look bent, what property is being described?
Refraction
What decreases as the distance between two objects increases?
Gravity
White light is shining on a thick purple blanket.
Which colors of the visible light spectrum does the purple blanket ABSORB?
All colors except purple.
White light is shining on a thick purple blanket.
Which colors of the visible light spectrum does the purple blanket REFLECT?
Purple only.
If a wavelength is LONGER, will its frequency and energy be low or high?
If a wavelength is short, will its frequency and energy be low or high?
High.
What type of wave moves perpendicular to the direction that the particles vibrate?
Transverse wave.
What type of wave cannot travel through empty space because there are no particles?
Mechanical wave
What type of wave moves parallel to the direction that the particles vibrate?
Longitudinal wave
Why does a prism separate the colors of white light?
Different wavelengths travel at slightly different speeds.
An object with a weight of 6 Newton is dropped into a beaker filled with water. The weight of the water is displaces is 2 Newton.
What happens to the object placed in water: sinks or floats?
Sinks.
An object with a weight of 6 Newton is dropped into a beaker filled with water. The weight of the water it displaces is 2 Newton.
Is the object's density greater or less than the water?
Greater.
If a mixture only lets light partially go through it like frosted glass, what type of material is it?
Translucent.
If a mixture is opaque, will any light go through?
No, it will all be absorbed.