Second Semester Practice Question Preview (ID: 37655)


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What does the atomic number tell us about an element?
a) how many neutrons it has
b) How many electron clouds it has
c) How many protons it has in its nucleus.
d) The strength of the element.

Energy stored in the bonds between atoms is
a) kinetic energy.
b) thermal energy.
c) electrical energy.
d) chemical energy.

Kinetic energy and potential energy are both types of
a) solar energy.
b) electrical energy.
c) chemical energy.
d) mechanical energy.

When you drop a ball to the floor, what happens to the energy in the ball?
a) Most of the energy is destroyed.
b) The energy stays in the ball as it drops.
c) The energy is gained by the air and the floor.
d) Energy is made and goes to the air and the floor.

Which sample of water has the greatest amount of thermal energy?
a) 1 cup of water at 72 degrees C
b) 1 cup of water at 85 degrees C
c) 1/2 cup of water at 72 degrees C
d) 1/2 cup of water at 85 degrees C

What kind of energy is stored in the gas pumps where your parents fill their vehicles with fuel?
a) kinetic energy
b) thermal energy
c) chemical energy
d) mechanical energy

What is thermal energy?
a) the temperature of a substance
b) the amount of motion in a substance
c) the kinetic energy minus the potential energy in a substance
d) the total amount of potential and kinetic energy in a substance

What type of heat transfer causes winds?
a) radiation
b) convection
c) transversal
d) conduction

Which statement is true about heat movement?
a) Heat always moves from a warmer substance to a cooler one.
b) Heat moves between two substances only when they are touching.
c) Heat moves from substances with lower kinetic energy to substances with higher kinetic energy.
d) Heat usually moves from a warmer substance to a cooler one but can also move from a cooler substance to a warmer one.

When heat transfers between two objects by conduction
a) one object must be a liquid.
b) the two objects must be touching.
c) the particles in the objects change location.
d) the two objects must have space between them.

Which of the following is the best description of how matter moves in a compressional wave?
a) It moves up and down in the same direction as the wave.
b) It moves back and forth in the same direction as the wave.
c) It moves up and down in the opposite direction of the wave.
d) It moves back and forth in the opposite direction as the wave.

Which part of the electromagnetic spectrum can damage skin cells?
a) radio rays
b) gamma rays
c) ultraviolet rays
d) visible light rays

In a glass of water, a straw looks bent and changes shape. How is the light behaving?
a) Light is being reversed.
b) Light is being reflected.
c) Light is being refracted.
d) Light is being absorbed.

Why is a metal spoon a better heat conductor than a wooden spoon?
a) The metal spoon is made of a harder, more dense material than the wooden spoon.
b) The electrons in the metal spoon are harder to move than the electrons in the wooden spoon.
c) The metal spoon has a shinier luster and smoother texture than the wooden spoon has.
d) The electrons in the metal spoon move more easily than the electrons in the wooden spoon do.

In a glass of lemonade, what will happen to the particles in the ice cubes as heat flows from the lemonade to the ice cubes?
a) The particles will move faster.
b) The particles will move slower.
c) The particles will move at the same speed.
d) The particles will move slower and then faster.

Which color absorbs the greatest amount of light that strikes it?
a) black
b) red
c) white
d) yellow

You often see lamps placed above prepared foods in restaurants. How do these lamps help keep the food warm?
a) radiation
b) refraction
c) conduction
d) convection

Feathers help a bird stay warm because
a) they easily transfer heat
b) they trap heat in spaces between the feathers
c) they prevent the snow from melting so quickly.
d) they protect the bird because it doesn't have a layer of fat.

The chemical formula for water is H2O. This information tells you that water is
a) a mixture.
b) a solution.
c) an element.
d) a compound.

In a lab, a student observes a sample of an element. It is brittle and a poor conductor of heat. It cannot be hammered into sheets. Which type of element is the student most likely observing?
a) metal
b) aurum
c) metalloid
d) nonmetal

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