What is meant by a wave
Chapter 4
What is required to do work?
Do all forces do work? Explain
Car b is travelling twice as fast as car a, but a car has three times the mass of car b. which car has the greater kinetic energy?
If the speeds of a moving object is doubled, how many times more work is required to bring it to rest?
An object is said to have a negative energy potential. Because it is preferable not to work with negative numbers, how can you change the value of the object’s potential energy without moving the object?
what is meant by a wave?
do all waves require a medium to propagate?
Which end(blue or red) of the visible spectrum has the longer wavelength?which one has the higher frequency?
are radio waves sound waves?explain
on which temperature scale would a temperature change of 10 degrees be the largest?
what does the specif heat of a substance tell you when you compare it with the specific heat of another substance?
if equal amounts of heat are added to two containers of water and the resultant temperature change of the water in one container is twice that of the water in the other container,then what can you say about the quantities of water in the containers?
name the process of going a) from a solid to a gas b)from a gas to a solid
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Force
Forces only do work if they move things or object therefore not all forces do work.KE= 0.5*m*v2. Let us assume car A has velocity 2 and B a velocity of 4. Let the mass of A be 3 and that of B be According to the formula, KE of A is 6 and that of B is 8. B has a greater velocity.Twice……………………..
APA
241 words
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