When using science to investigate physical phenomena, which characteristic of the event must exist?

What cloud makes hail

At a temperature of 280k, the gas in a cylinder has a volume of 20.0 liters. If the volume of the gas is decreased to 10.0 liters, what must the temperature be for the gas to remain at a constant pressure?

A bicycle and a train are taveling at the same speed, who has the most kinetic energy?

You want to design a spy bracelet that can send a signal to a friend's bracelet when you are nearby. Which type of electromagnetic radiation would your design use?

If the pitch of the sound coming out from a speaker increases, which is true about the sound wave? (A) wavelength increases (B) wavelength decreases (C) amplitude increases (D) amplitude decreases

What will most likely happen if a light wave moves through a solid?

Ben franklin showed that 1 teaspoon of oil would cover about 0.50 acre of still water. if you know that 1.0 x 104m2 = 2.47 acres, and that there are 5.0 cm3 in a teaspoon, what is the thickness (in cm) of a later of oil?

Which of the following are indicators of chemical changes (choose all that apply): 1. A solid is formed 2. Heat is released or absorbed 3. A gas is released 4. Light or Sound is Produced 5. State of Matter changes 6. A color change takes place 7.

How long do your guests have to wait until the steaks are ready?

Newton discovered that gravity behaves differently in space than it does on Earth. true or false?