Light
What is the opposite of light?
Heavy
Did Cleopatra live closer to - the Moon landing or the pyramids being built?
How does one calculate the velocity of a wave?
frequency x wavelength
Identify the three types of radiation we discuss this term.
Alpha
Beta
Gamma
Compare reflection to refraction
reflection - light bouncing of surface
refraction - light bending as it passes through different mediums
King Henry VIII had staff titled "Grooms of the Kings Stool". What was their job?
Assist wiping.
How would increasing the amplitude have on light?
Increase brightness of light
Identify the products of alpha decay.
New element with less mass and He-4
How fast is light through any medium?
Less than 3 x 102 m/s
What economic strategy did the Apartheid use discourage businesses from employing black people?
Increasing their minimum wage
Sound travels through which state of matter fastest?
Solids
Identify the possible products of beta decay.
B-
Element with +1 atomic number, electron & antinutrino
B+
Element with -1 atomic number, positron & nutrino
product of initial light angle and refractive index of one material
is equal to
the product of the refracted light angle and the refractive index of the second material
What was the first living thing sent to space?
Compare transverse waves with longitudinal waves.
transverse wave - particle vibration perpendicular to the direction of energy; travel through medium or vacuum
longitudinal wave - particle vibration parallel to energy flow; travel through medium only
Define the term 'half-life'
the time it takes for half of a given amount of a substance to break down
If the Sun stopped producing light - how long would it take for us (on Earth) to notice?
8min 20sec
What was the most important event that occurred in 1960?
Mother Clement was born
How do you sign hello in Shona?
*wave*
A research team is developing new materials to protect people from gamma radiation. What are the two main properties any new material must have?
Effectively protect person from gamma radiation.
Less toxic than lead shields.