1. All waves that travel through matter are called mechanical waves . 2. In a longitudinal wave, amplitude can be measured from the distance between high pressure areas of the wave called wavelength . 3. The position of a particle of matter in the absence of a wave is called the . 4. is determined by the energy of the disturbance that causes the wave. 5. The matter a wave travels through is called the material of the wave. True/False 6. In all mechanical waves, particles of the medium move up and down when the wave passes through them. True/False 7. A wave with greater energy has a larger amplitude. True/False 8. The more energy a wave has, the farther the particles of matter move. True/False 9. Wave amplitude is the maximum distance the particles of a medium move from their resting positions when a wave passes through. True/False

The metal wire in an incandescent lightbulb glows when the light is switched on and stops glowing when it is switched off. this simple process iswhich kind of a change? a. a physical changeb. a chemical changec. a nuclear changed. an ionic change

1. how much energy is needed to raise the temperature of 40.0 g of argon from 25c to 40c? the specific heat capacity of argon is 0.520 j/(g·k) 2a. 23.0 ml of 0.100 m hcl (standard) are added from a buret to neutralize 50.0 ml of an unknown basic solution. 2b. if the oh- produced in the previous reaction came from ca(oh)2, then what is the molarity of the ca(oh)2? 3.calculate the new freezing-point of a solution when 60.5 grams of cacl2 solute is dissolved in 0.612 kg of water. 4. what is the maximum number of moles of alcl3 that can be produced from 5.0 mol al and 6.0 mol cl2? 5. a sample of oxygen gas has a volume of 150 ml when its pressure is 0.923 atm. if the pressure is increased to 0.987 atm and the temperature remains constant, what will the new volume be? 6. nitrogen gas in a closed container at a temperature of 100.0 oc and 3.0 atm is heated to 300 oc. what is the pressure of the gas at the higher temperature?

Aboy with a mass 25 kg climbs into a small tree. he sits on a branch that is 2.o m above to the ground. what is his gravitational potential energy above the ground?