Which is physical change?

A) Burning Wood

B) Rusting metal

C) Cooking an egg

D) Freezing water

What does a Halogen atom give off when it gains an electrons?

What is one possible effect of a hurricane in Florida? Avalanche Drought Flood Wildfire

How much power is used when 600J of work are done in 10 seconds?

Why can't perpetual motion not work on earth?

Problem 1: A 150 kg person stands on a compression spring with spring constant 10,000 N/m and nominal length of 0.50. What is the total length of the loaded spring?

Describe and apply Newton's Three Laws

If you do 1000j of work on a system and remove 500j of heat from it, what is the change in its internal energy

Two children stretch a jump rope between them and send wave pulses back and forth on it. The rope is 4.5 m long, its mass is 0.42 kg, and the force exerted on it by the children is 71 N.

An object will only change its motion if a force is directly applied to it. is this a true statement?

Janice has just measured the density of an object. Which value is possible? (Density: D = )