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WorksheetsScience 9 Chp. 3 Practice Test
Total questions: 118
Worksheet time: 6hrs 54mins
A gas has
a definite volume but no definite shape.
a definite shape but no definite volume.
no definite shape or definite volume.
a definite volume and a definite shape.
Matter that has a definite volume but no definite shape is a
liquid.
solid.
gas.
plasma.
Collisions of helium atoms with the walls of a closed container cause
condensation.
gas pressure.
a decrease in volume.
an overall loss of energy.
The phase change in which a substance changes from a liquid to a gas is
deposition.
sublimation.
condensation.
vaporization.
The phase change in which a substance changes from a solid to a liquid is
deposition.
melting.
condensation.
vaporization.
The phase change in which a substance changes from a solid to a gas or vapor without changing to a liquid first is
deposition.
sublimation.
condensation.
vaporization.
The phase change in which a substance changes from a gas directly to a solid is
deposition.
sublimation.
condensation.
vaporization.
Pressure can be measured in Pascals (Pa) or Newtons per square meter.
1 Pa = 1N/m2
True
False
What is the greatest benefit of using hydraulics?
The multiplication of speed
The multiplication of operating time
The multiplication of fuel efficiency
The multiplication of force
A barber raises his customer’s chair by applying a force of 150N to a hydraulic piston of area 0.01 m2. If the chair is attached to a piston of area 0.1 m2, what will the force up on the chair be?
1400 N
1500 N
1300 N
What is 0.00 Kelvin known as
0° Celsius.
0° Fahrenheit.
the freezing point of water.
absolute zero.
Which of the following has the lowest density?
Gases
Solids
Liquids
All mater is the same density
The upward force exerted by a fluid is called the...
buoyancy force
pascal's principle
fluidity principle
viscosity
Which has a definite shape and definite volume?
Gas
Mixture
Solid
Liquid
A solid will keep its shape in any position and in any container.
True
False
Particles in a solid are completely motionless.
True
False
Like a liquid, a gas is a fluid.
True
False
The change from a liquid to a solid is called
freezing.
melting.
vaporization.
sublimation.
A liquid's resistance to flowing is
pressure.
viscosity.
temperature.
thermal energy.
Which of the following has a high viscosity?
Water
Vinegar
Salt Water
Honey
As gas particles move, they will spread apart filling the all the space available.
True
False
A puddle that dries up is an example of
boiling.
evaporation.
sublimation.
condensation.
Vaporization that occurs throughout the liquid is known as
freezing.
melting.
boiling.
evaporation.
Which of the following is a type of sublimation?
Clouds
Water vapor
Ice cream
Dry ice
The volume of a gas is the same as the volume of it's container.
True
False
The faster gas particles are moving, the lower their temperature is.
True
False
As the pressure of a gas is increased
the temperature increased.
the temperature is decreased.
the temperature is not changed.
everything freezes.
When the volume of a gas is increased
The temperature increases.
The temperature decreases.
The temperature stays the same.
Everything freezes.
Vaporization that occurs only on the surface of a liquid is called
melting.
condensation.
boiling.
evaporation.
In a solid, the particles
vibrate in place.
slide past one another.
overcome the strong attraction.
move freely in any direction.
Which of the following occurs when a liquid becomes a gas?
The particles slow down.
The particles beak away from one another.
The particles move closer together.
As per Charles' Law, if temperature of any gas is increased its volume will
increase.
decrease.
remains the same.
What law describes the relationship between volume of a gas and its pressure?
Boyle's
Charles'
Gay-Lussac's
Graham's
What is the Law of Conservation of mass?
Mass is created in a chemical reaction.
Mass is created in a physical change.
New chemicals formed from a chemical reaction have a larger overall mass than the original reactants.
Mass is never created or destroyed.
What will weigh more when a chemical change is complete? The reactants before the chemical reaction, or the product after the reaction is complete?
They both will weigh the same.
The product always weighs more than the reactant.
The reactant will weigh more than the product.
They both will loose mass after the reaction.
Can matter be created or destroyed?
Yes, it can be created.
Yes, it can be destroyed.
No, matter is always conserved.
None of these
The Law of Conservation of Energy states:
Energy can created or destroyed but not transformed.
Energy cannot be created or destroyed, it can only transformed.
Energy can't be created, destroyed, or transformed.
Gas pressure is caused by
gas molecules colliding with surfaces.
gas molecules condensing to a liquid.
gas molecules hitting other gas molecule.
barometers.
At a constant pressure, the volume decreases. What happens to the temperature?
Increases
Decreases
Stays the same
At a constant temperature, pressure increases. What happens to the volume?
Increases
Decreases
Stays the same
What happens to the temperature of a gas when the volume increases?
It increases
It decreases
It stays the same
The greater the speed of gas particles in a container, the
greater the pressure.
fewer collisions there will be.
lower the temperature.
lower the pressure.
According to the kinetic theory of matter, what is all matter made of?
Atoms and molecules
Cells and tissues
Energy and light
Water and air
Which statement best describes how temperature affects the speed of particles in matter?
Higher temperature increases particle speed
Higher temperature decreases particle speed
Temperature does not affect particle speed
Lower temperature increases particle speed
At the same temperature, how do more massive particles move compared to less massive ones?
More massive particles move slower
More massive particles move faster
Both move at the same speed
More massive particles stop moving
Which of the following is a property of solids?
Definite shape and volume
Variable shape and volume
Definite shape, variable volume
Variable shape, definite volume
How do liquids differ from solids in terms of shape and volume?
Liquids change shape but not volume
Liquids change volume but not shape
Liquids have definite shape and volume
Liquids have variable shape and volume
Explain how the kinetic theory helps to distinguish between solids, liquids, and gases.
It explains differences based on particle motion
It explains differences based on color
It explains differences based on taste
It explains differences based on size
Which state of matter is described as a nonsolid state in which atoms or molecules are free to move past each other?
Solid
Fluid
Plasma
Crystal
What is the most common state of matter in the universe?
Solid
Liquid
Plasma
Gas
What kind of energy do all particles of matter have because they are in motion?
Potential energy
Chemical energy
Kinetic energy
Electrical energy
Temperature is a measure of which of the following?
The total kinetic energy of a substance’s atoms
The average kinetic energy of the particles in an object
The amount of potential energy in a substance
The number of particles in a substance
Thermal energy depends on which two factors?
Particle size and shape
Particle speed and number of particles
Temperature and pressure
Volume and density
Explain how temperature and thermal energy are related but different. Use evidence from the definitions provided.
Temperature is the total kinetic energy, while thermal energy is the average kinetic energy.
Temperature is the average kinetic energy, while thermal energy is the total kinetic energy of a substance’s atoms.
Both temperature and thermal energy measure the number of particles.
Temperature and thermal energy are both measures of potential energy.
What happens to the identity of a substance during a change of state?
It does not change.
It changes completely.
It becomes a new element.
It disappears.
Which of the following changes of state requires energy?
Melting
Freezing
Condensation
Solidification
What is evaporation?
The change of state from a liquid to a gas
The change of state from a gas to a liquid
The process in which a solid changes directly into a gas
The change of state from a solid to a liquid
Which process describes a solid changing directly into a gas?
Sublimation
Condensation
Evaporation
Melting
Which changes of state release energy?
Freezing and condensation
Melting and evaporation
Sublimation and melting
Evaporation and condensation
What is condensation?
The change of state from a gas to a liquid
The change of state from a liquid to a gas
The process in which a solid changes directly into a gas
The change of state from a solid to a liquid
What happens to mass and energy during physical and chemical changes?
They are both conserved.
They are both destroyed.
Only mass is conserved.
Only energy is destroyed.
Why can neither mass nor energy be created or destroyed during physical and chemical changes?
Because of the law of conservation of mass and energy
Because substances always change identity
Because energy is always released
Because mass is always lost
What does the law of conservation of mass state?
Mass can be created but not destroyed.
Mass can be destroyed but not created.
Mass cannot be created or destroyed.
Mass can be created and destroyed.
Which law states that energy cannot be created or destroyed, only changed from one form to another?
Law of conservation of mass
Law of conservation of energy
Law of inertia
Law of motion
During a chemical change, what happens to the total mass of the substances involved?
It increases.
It decreases.
It stays the same.
It disappears.
If energy is changed from one form to another during a physical or chemical change, what happens to the total amount of energy present before and after the change?
It increases.
It decreases.
It stays the same.
It becomes zero.
A student burns a piece of wood in a closed system. After the reaction, the total mass of the system is measured. What should the student expect according to the law of conservation of mass?
The total mass will increase.
The total mass will decrease.
The total mass will remain unchanged.
The total mass will become zero.
Explain why the law of conservation of energy is important when analyzing physical and chemical changes.
It helps us understand why energy disappears during changes.
It shows that energy can be created from nothing.
It ensures that the total amount of energy remains constant, even if it changes form.
It proves that energy is not involved in physical or chemical changes.
How do fluids exert pressure?
Only downward
Only upward
Evenly in all directions
Only sideways
What is the SI unit for pressure?
Newton
Joule
Pascal
Watt
Which formula is used to calculate pressure?
Pressure = area × force
Pressure = force ÷ area
Pressure = force + area
Pressure = area ÷ force
What is the definition of buoyant force?
The downward force that pulls objects to the bottom of a fluid
The sideways force that moves objects in a fluid
The upward force that keeps an object immersed in or floating on a fluid
The force that compresses objects in a fluid
A rubber duck floats in a bathtub because:
The water is heavier than the duck
The duck is made of rubber
The water exerts an upward buoyant force on the duck
The duck is hollow
If you increase the force applied to a given area, what happens to the pressure?
The pressure decreases
The pressure stays the same
The pressure increases
The pressure becomes zero
Explain why air particles inside a pumped-up bicycle tire push against each other and the tire walls. Use your understanding of fluid pressure.
Because air particles are attracted to the tire walls
Because fluids exert pressure evenly in all directions
Because the tire is made of rubber
Because air particles are heavier than the tire
According to Archimedes’ principle, what is the buoyant force on an object in a fluid equal to?
The weight of the fluid that the object displaces
The mass of the object
The volume of the object
The density of the fluid
What determines whether an object will float or sink in a fluid?
The density of the object compared to the fluid
The color of the object
The temperature of the fluid
The shape of the object
If an object is less dense than the fluid in which it is placed, what will happen?
It will float
It will sink
It will dissolve
It will evaporate
What does Pascal’s principle state about pressure in a fluid?
A change in pressure at any point in an enclosed fluid is transmitted equally to all parts of the fluid
Pressure only increases at the top of the fluid
Pressure decreases as you go deeper in the fluid
Pressure is not affected by changes in the container
Which mathematical equation represents Pascal’s principle?
P₁ = P₂
F = ma
V = IR
E = mc²
Hydraulic devices are based on which scientific principle?
Pascal’s principle
Archimedes’ principle
Bernoulli’s principle
Newton’s first law
What affects the speed of a fluid in motion?
The size of the area through which it moves
The color of the fluid
The temperature of the container
The shape of the container only
What is viscosity?
The resistance of a gas or liquid to flow
The speed at which a fluid moves
The density of a fluid
The pressure in a fluid
How does viscosity affect the flow of a fluid?
Higher viscosity means the fluid flows more slowly
Higher viscosity means the fluid flows more quickly
Viscosity does not affect flow
Viscosity only affects solids
If the pressure in a container is increased at any point, what happens according to Pascal’s principle?
The pressure increases at all points by the same amount
The pressure decreases at all points
Only the top of the fluid experiences increased pressure
The pressure remains unchanged
Which scientific principle states that fluid pressure decreases as speed increases?
Pascal's principle
Archimedes' principle
Bernoulli's principle
Boyle's law
If the speed of a fluid increases, what happens to its pressure according to Bernoulli's principle?
Pressure increases
Pressure stays the same
Pressure decreases
Pressure fluctuates randomly
A student observes water flowing faster through a narrow pipe than a wide pipe. Using Bernoulli's principle, what can the student infer about the pressure in the narrow pipe compared to the wide pipe?
The pressure is higher in the narrow pipe
The pressure is lower in the narrow pipe
The pressure is the same in both pipes
The pressure alternates between high and low in the narrow pipe
