Topic 1 (Matter on the Move)
Topic 2 (Mixing and Dissolving)
Topic 3 (Separating Earth's Mixtures)
Topic 4 (Flow Rate and Viscosity)
Topic 5 (Density)
Topic 6 (Buoyancy)
Topic 7 (Fluid Pressure)
Topic 8 (Fluid Systems)
Lab Safety
100
What state of matter can change its shape but not its volume?
A. Solid
B. Liquid
C. Gas
B. Liquid
100
The universal solvent can dissolve many different substances. To identify a solution that contains the universal solvent, chemists identify the solution as...
A. Salty
B. Agitated
C. Aqueous
D. Evaporated
C. Aqueous
100
What type of mixture allows many of the substances making up the mixture to be visible?
A Solution
B. Emulsion
C. Homogeneous
D. Heterogenous
D. Heterogeneous
100
A device that moves a fluid or through something is called a pump. A pump operating in your body is your...
A. Heart
B. Kidney
C. Spleen
D. Liver
A. Heart
100
What is the formula for density?
Density = Mass/Volume (D=M/V)
100
Compartments fill up and empty with compressed air, enabling submarines to move up and down in the water. These compartments are called...?
A. Valve
B. Ballast
C. Interior
D. Compressed
B. Ballast
100
What is the formula for pressure?
Pressure = Force/Area (P = F/A)
100
What type of system uses a liquid to transfer force?
A. Magnetic system
B. Hydraulic system
C. Electric system
D. Pneumatic system
B. Hydraulic system
100
Which of the following statements is true?
A. Carelessness will result in precise results
B. It is cool to wear protective gear in the science lab
C. The baggy look is in, especially in the hip science lab
D. Long hair, shades, and scarves are the rule in the science lab
B. It is cool to wear protective gear in the science lab
200
What tiny things are constantly moving, regardless of their state, and make up all matter?
A. Particles
B. Cells
C. Rays
D. Waves
A. Particles
200
Solubility is the measure of how much of a given substance is mixed with another substance. This usually applies to homogenous solutions, where it refers to the amount of solute in a __________, like sugar and water.
A. Mixture
B. Pure mixture
C. Solvent
D. Saturation
C. Solvent
200
Which type of mixture settles over time, forming layers?
A. Suspension
B. Solution
C. Alloy
D. Pure substance
A. Suspension
200
Valves are important devices used in any system for moving fluids. The purpose of a valve is to...
A. Maintain fluid viscosity
B. Control the flow of the fluid
C. Enable fluids to flow unrestricted
D. Provide pressure for the fluid to flow
B. Control the flow of a fluid
200
The idea of spaces between the particles, using the particle model, helps us to understand the concept of density, if we consider that...
A. No particle is the same
B. Particles all have the same size
C. Particles all have the same shape
D. Space is determined by the amount of particles present
A. No particle is the same
200
When air is added to the ballast tanks of a submerged submarine, its overall density decreases, and it is able to...
A. Dive
B. Sink
C. Maneuver
D. Resurface
D. Resurface
200
Why do snowshoes prevent a person from sinking deep into the snow?
A. They increase the force on the snow
B. They trap air to heat the snow
C. They reduce the pressure by increasing the area
D. They make the snow denser
C. They reduce the pressure by increasing the area
200
Two identical syringes are used to build a model hydraulic lift. The lift will not lift heavy loads easily because something is wrong. What is it?
A. The syringes should be smaller
B. The syringes should be larger
C. The syringes should be different sizes
D. The syringes should be longer
C. The syringes should be different sizes
200
Why is wearing protective gear (lab coats, glasses, gloves, etc) important during lab activities?
A. It helps prevent injuries from chemicals, heat, or sharp objectsA. It makes experiments easier to complete
B. It improves the accuracy of your measurements
D. It keeps the lab equipment clean
A. It helps prevent injuries from chemicals, heat, or sharp objects
400
Anything that has no fixed shape and flows easily (not piling up) and usually is a liquid or a gas is called a...
A. Pneumatic
B. Hydraulic
C. Fluid
D. Compressed gas
C. Fluid
400
Which of the following antacid tablets will dissolve the fastest?
A. A whole tablet
B. A tablet cut in half
C. A tablet cut into quarters
D. A crushed tablet
D. A crushed tablet
400
What does the given figure demonstrate?
A. The dehydration of a salt-water solution
B. Distillation being used to recover water from a salt-water solution
C. The process of crystallization
D. The diffusion of a salt-water solution
B. Distillation being used to recover water from a salt-water solution
400
Using the ramp method and data table, determine which fluid was tested to be the most viscous?
Green
400
Wearing a life jacket while on a boat can help to save your life if you fall into the water. Why is this the case?
A. The life jacket lowers your average density
B. The life jacket raises your average density so it is less than that of the water
C. The life jacket is made of a high density material
D. The life jacket stabilizes your density
A. The life jacket lowers your average density
400
The operator of a ballast tank in a submarine spots an enemy ahead and decides to lower the submarine in the water. What will the operator do to achieve this task?
A. Let water out of the tank
B. Let water into the tank
C. Pump air into the tank
D. Steer the submarine's nose downward
B. Let water into the tank
400
When we suck on a straw in a juice box container, the sides of the container collapse, because…
A. Atmospheric pressure collapses the walls
B. Pressure is increased inside the container
C. Increased compression causes the collapse
D. The strength of the walls is being sucked out
A. Atmospheric pressure collapses the walls
400
When a force is applied to a substance and the particles cannot be forced closer together, the substance is said to be nearly incompressible. What happens to the force?
A. The force is applied throughout the substance
B. The force disappears because the particles absorb it
C. The force causes the particles to spread farther apart
D. The force only affects the particles closest to the point of contact
A. The force is applied throughout the substance
400
Laboratory glassware is recognized by the name of the glass type, PYREX and KIMAX. This type of glass is necessary in the Science Lab because it is…
A .Not easily cracked or broken
B. Intended to be used by children
C. Less expensive than regular glass
D. Heat resistant, meaning it won’t melt
D. Heat resistant, meaning it won’t melt
500
A change in state occurs when the energy of the particles in a substance changes. Freezing occurs when the particles in a substance…
A. Gain energy
B. Lose energy
C. Share energy
D. Convert energy
B. Lose energy
500
What is a supersaturated solution?
A. A solution in which less solute will dissolve at a specific temperature
B. A solution that contains more solute than would normally dissolve at a certain temperature
C. A solution in which more of the solute would dissolve at the same temperature
D. A solution that can be formed by cooling and stirring a saturated solution
B. A solution that contains more solute than would normally dissolve at a certain temperature
500
Which process is used first when extracting gold from ore?
A. Cooling the ore to freeze impurities
B. Spinning the mixture in a centrifuge
C. Dissolving the gold using chemicals
D. Heating the ore until gold melts
C. Dissolving the gold using chemicals
500
Viscosity varies from liquid to liquid. How could you determine which of two liquids had greater viscosity?
A. Volume
B. Particle size
C. Resistance to flow
D. Resistance to evaporation
C. Resistance to flow
500
Fresh and saltwater systems have different densities. All cargo ships have a special line that shows how much the ship should be safely loaded so it won’t sink as it goes from freshwater to saltwater. This line is called the…
A. Sinking Line
B. Plimsoll Line
C. Density Line
D. Buoyancy Line
B. Plimsoll Line
500
Fish can change their buoyancy by using a special gas-filled sac called a swim bladder (#5 in diagram). Fish spend most of their lives in...
A. Positive buoyancy
B. Negative buoyancy
C. Neutral buoyancy
D. Horizontal buoyancy
C. Neutral buoyancy.
500
A gas can be compressed more than a liquid because the gas particles...
A. Can increase their energy level more than the liquid particles
B. Have more space between them than the liquid particles do
C. Need extra energy to take up more space
D. Need less energy to take up more space
B. Have more space between them than the liquid particles do
500
In a model hydraulic press, a pedal is used to push down the large piston, while the small piston lifts the load. What is wrong with this model?
A. The pistons should be attached
B. The load should be on the large piston
C. The pistons should be the same diameter
D. The operator didn’t press the hydraulic button
B. The load should be on the large piston
500
What should you do first if you accidentally spill a chemical?
A. Wipe it up with your sleeve
B. Tell the teacher immediately
C. Pretend it didn’t happen
D. Walk away
B. Tell the teacher immediately
1000
Why does a gas expand to fill any container size, even a huge room?
A. Gas particles are heavier than liquid particles
B. Gas particles sink to the bottom of a container
C. Gas particles are attracted strongly to each other
D. Gas particles move quickly and spread far apart
D. Gas particles move quickly and spread far apart
1000
The graph indicates that the solubility of salt (NaCl) at room temperature (20°C) is...
A. 35g/100ml of water
B. 57g/100ml of water
C. 78g/100ml of water
D. 22g/100ml of water
A. 35g/100ml of water
1000
What is the main purpose of the tall fractional distillation tower in petroleum refining?
A. To freeze petroleum into solid blocks
B. To cool vapours so different fractions condense at different levels
C. To separate petroleum using magnets
D. To filter out unwanted solids
B. To cool vapours so different fractions condense at different levels
1000
The viscosity of a gas _________________ as it is heated, and _________________ as it is cooled.
A. Increases, does not change
B. Decreases, increases
C. Decreases, does not change
D. Increases, decreases
D. Increases, decreases
1000
The formula for density is D = M/V. If a substance has a volume of 100cm^3, and a mass of 1932g, what is the density of the substance?
A. 193.20 g/cm^3
B. 1.932 g/cm^3
C. 19.32 g/cm^3
D. 0.1932 g/cm^3
C. 19.32g/cm^3
1000
Archimedes' principle states that "the buoyant force acting on an object equals...
A. The area of the fluid displaced by the object'
B. The force that holds the object afloat’
C. The weight of the object displaced by the fluid’
D. The weight of the fluid displaced by the object’
D. The weight of the fluid displaced by the object'
1000
Using a hydraulic house jack, there is a pressure of 80 Pa. What would the area of a piston have to be if you wanted to lift a load of 20,000 N?
A. 250 cm^2
B. 400 cm^2
C. 200 cm^2
D. 350cm^2
A. 250cm^2
1000
What does Pascal’s Law state about pressure in a confined fluid?
A. It disappears
B. It only moves upward
C. It spreads equally in all directions
D. It doubles with heat
C. It spreads equally in all directions
1000
Why should broken glass never be picked up with bare hands?
A. It takes too long
B. It might be dirty
C. It could cause cuts or injuries
D. It belongs to the teacher
C. It could cause cuts or injuries