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force/motion
work/power
energy
heat
waves
100
when forces are in the same direction, what do we do with them?
add them
100
How much force is required to push a box 15 meters if you generated 50J of work?
3.33 N
100
what is energy?
the ability to do work
100
explain how a piece of ice melts in a glass of water and cools it.
the ice absorbs the heat from the water causing it to melt and cooling the water
100
What are the four main parts of any wave?
Amplitude, crest, trough, wavelength
200
What is the unit for speed?
m/s
200
a cat runs a total distance of 5 meters, what power did the cat generate if used 20N and took 10 sec to get there?
10W
200
describe one energy transformation that can happen in your phone
electricity to sound
200
Name two insulators and two conductors of heat in your home?
cooler/bed sheets, steel/iron
200
Explain the doppler effect in terms of stars.
is a star is moving towards you, the color will be shifted towards the blue spectrum and vise versa
300
forces are represented with what?
arrows
300
A wheelbarrow is what type of lever?
2nd
300
if I have a mass of 200Kg, and I am moving 15 m/s, how much KE do I have?
22,500J
300
touching a hot plate out of the oven would be what type of heat transfer?
conduction
300
how fast is a wave moving if its wavelength is 1.3m and the frequency is 20hz?
26 m/s
400
What makes something a vector?
direction
400
WHat are the six simple machines?
pulley, wheel and axel, wedge, lever, screw, incline plane.
400
if a diver is 45 m above the ground and weighs 60 Kg, what is the divers GPE?
26,460 J
400
convert 60 C to kelvin
333
400
A wave transfers what?
energy
500
If I walk 20 m in a straight line and then walk back towards my starting point by 15 m, what was my total displacement and total distance?
distance=35/ displacement=5 m
500
What is the definition of power?
the rate at which work is done
500
imagine a person on a roller coaster, where is the KE and the GPE energy the greatest
GPE=highest point, KE= lowest point
500
What are the three types of heat transfer?
convention, conduction, radiation
500
which color of the rainbow has the shortest wavelength?
violet