Which statement is not true about electrons? Electrons have a negative charge. The orbit of electrons around the nucleus is like a cloud. The path an electron moves on is not very straight. The basic unit of matter is the electron.

A mass that weight stretches a spring. The system is acted on by an external force. If the mass is pushed up and then released, determine the position of the mass at any time. Use as the acceleration due to gravity. Pay close attention to the units.

Which of the following most likely happens when the temperature of a chemical reaction is increased? Molecules speed up? Molecules stop reacting? Reaction rate decreases? Chemical reaction stops?

What is the relationship between lightning and thunder

What is meant by the term friction?

What are the reactants in the following chemical equation NaCl+AgF=>NaF+AgCl

How does a bicycle rider's energy of motion changes as the gain speed while riding down a hill? Options: A) It is lost. B) It increases. C) It remains the same. D) It is stored in the bicycle rider.

When is a sailboat the stand on vessel in relations to a recreational power boat?

What happens when a balloon is rubbed with a woollen cloth?

A child causes a wagon to accelerate by pulling it with a horizontal force. newton's third law says that the wagon exerts an equal and opposite force on the child. how can the wagon accelerate? (hint: draw a free-body diagram for each object.)

Which wavelengths of light is the highest in energy?