solids
One example of a physical change is ____.
a. burning paper
b. baking cookies
c. heating table sugar
d. dissolving salt in water
d. dissolving salt in water
All elements are composed of extremely small particles called ____.
a. compounds
b. mixtures
c. atoms
d. molecules
c. atoms
Which type of substance does Pascal’s principle deal with?
a. solids
b. fluids
c. powders
d. metals
b. fluids
Bernoulli’s principle helps to explain ____.
a. hydraulic brakes
b. buoyancy
c. momentum
d. flight
d. flight
In which state of matter do the particles spread apart and fill all the space available to them?
a. crystal
b. liquid
c. gas
d. solid
c. gas
One example of a chemical change is ____.
a. filtering
b. burning wood
c. boiling water
d. crushing a can
b. burning wood
Which of the following is NOT an example of a chemical change?
a. gas burning on a stove
b. rust forming on an iron fence
c. salt dissolving in a glass of water
d. using electricity to break down water into hydrogen and oxygen
c. salt dissolving in a glass of water
What scientific rule describes why water squirts from a plastic bottle when it is squeezed?
a. Bernoulli’s principle
b. Archimedes’ principle
c. Pascal’s principle
d. Newton’s first law of motion
Pascal’s principle
A substance whose shape can easily change is a ____.
a. solid
b. powder
c. fluid
d. metal
c. fluid
According to Boyle’s law, when the pressure of a gas increases at constant temperature, its volume ____.
a. increases
b. stays constant
c. decreases
d. increases, then decreases
. decreases
The energy of matter in motion is called ____.
a. kinetic energy
b. potential energy
c. chemical energy
d. electromagnetic energy
a. kinetic energy
Anything that has mass and takes up space is called ____.
a. matter
b. energy
c. heterogeneous
d. homogeneous
a. matter
Which of the following is true of the buoyant force?
a. It acts in the downward direction.
b. It acts with the force of gravity.
c. It acts in the upward direction.
d. It makes an object feel heavier.
c. It acts in the upward direction.
A solid is a state of matter that has a (an) ____.
a. indefinite volume and an indefinite shape
b. definite volume and a definite shape
c. definite volume and an indefinite shape
d. indefinite volume and a definite shape
b. definite volume and a definite shape
According to Charles’s law, when the temperature of a gas increases at constant pressure, its ____.
a. volume increases
b. mass increases
c. volume decreases
d. particles move more slowly
a. volume increases
Substances that CANNOT be broken down chemically into other substances are ____.
a. elements
b. compounds
c. mixtures
d. solutions
a. elements
How do liquid water, ice, and water vapor differ from each other?
a. They are different states of matter.
b. They are different compounds.
c. They are made of different kinds of molecules.
d. They are made of different kinds of atoms.
a. They are different states of matter.
If an object floats, the volume of displaced water is equal to the volume of ____.
a. the entire object
b. the portion of the object that is above water
c. the portion of the object that is submerged
d. exactly half of the object
c. the portion of the object that is submerged
The resistance of a liquid to flowing is its ____.
a. pressure
b. temperature
c. viscosity
d. volume
c. viscosity
The change from liquid to solid, or the reverse of melting, is called ____.
a. condensation
b. boiling
c. sublimation
d. freezing
d. freezing
The measurement of how much matter an object contains is its ____.
a. volume
b. weight
c. mass
d. melting point
c. mass
Soil, a salad, and sugar water are all examples of ____.
a. elements
b. compounds
c. mixtures
d. atoms
c. mixtures
What scientific rule states that the buoyant force on an object is equal to the weight of the fluid displaced by the object?
a. Archimedes’ principle
b. Pascal’s principle
c. Bernoulli’s principle
d. Newton’s third law of motion
Archimedes’ principle
Particles of a liquid ____.
a. are tightly packed together and stay in a fixed position
b. have no viscosity
c. decrease in volume with increasing temperature
d. are free to move in a container but remain in close contact with one another
d. are free to move in a container but remain in close contact with one another
What is vaporization?
a. a gas becoming a liquid
b. a liquid becoming a solid
c. a gas becoming a solid
d. a liquid becoming a gas
a liquid becoming a gas