Does observing a physical property of a substance change the identity of the substance

An example of a single displacement reaction is

Dose mass alone determine weather an object will float or sink?

A forklift does 450 J of work to lift a 150 N hot tub. How high is the hot tub lifted? Round your answer to the nearest whole number.

The particles of an object are packed tightly together and are vibrating. when the object is heated, the particles start to move faster and slide past each other. this is an examples of

Which of the following is a contact force? A. Air resistance B. Magnetic force C. Gravity D. Electrical force

Which description tells the length of time it takes for a planet to revolve around the sun? A) the length of its year B.) the length of its day C.) the length of its month D.) the length of its decade I think it's B.), Am I correct?

I throw a 1 kg rock at 5 m/s. How much energy does it have?

The region around a magnet that exerts magnetic force is called an

What happens to chip bags when they are high in the atmosphere?

Doubling the distance between two objects halves the gravitational force between them. true or false