G8 Science - Class 15 Review | Baamboozle - Baamboozle

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The barber presses on the input piston to raise the customer’s chair. The cross-sectional areas of the input piston and the output piston are 400cm2 and 600cm2 respectively. If the customer is 54kg, calculate the the barber's force.

352.8N

Rank the following substances from most viscous to least viscous:

D>B>A>E>C

Which city (Timmins or Toronto) would experience a milder climate? Why?

Toronto is closer to a large water body so it would experience a milder climate because water has a high heat capacity.

If the mass of the rock is 12.3g. Find its density. Use the GRASS method.

2.46 g/mL

List and explain the three types of floods.

Regional floods, flash floods, ice-jam floods

If you created a density column using the following substances, draw and label what the density column would look like.

Top to bottom: Lamp oil, rubbing alcohol, vegetable oil, water, corn syrup

Fill in the blanks for the following diagram:

A = Freezing B = Melting C = Deposition D = Sublimation E = Condensation F = Evaporation

Explain how a septic system operates.

Solids are trapped in the septic tank where bacteria digest the waste. Liquid flows to drainage bed and return to groundwater.

What is the Particle Theory of Matter?

All matter is made of tiny particles, empty spaces between them, moving randomly all the time, move faster when heated, attract each other

Explain the relationship of all three gas laws.

Boyle - volume is inversely proportional to pressure. Charles - volume is proportional to temperature. Gay-Lussac - pressure is proportional to temperature.

Describe four ways to test for water quality.

Temperature, Acidity, Turbidity, Conductivity

List and describe three water treatment options.

Reverse osmosis, UV radiation (SODIS), Boiling water, Carbon filters, Iodine tablets, Desalination

Water that falls in Northern Ontario would flow into:

Hudson Bay

Calculate the force on your body if you are laying down on the floor. The atmospheric pressure is 101.2kPa and your body has a surface area of approximately 1.9m^2.

192,280 N

Explain the El Nino effect and its effect on Canada.

Weakening of trade winds off the western coast of South America every 2-7 years. This leads to milder temperature and decreased precipitation in Canada.

Which curve describes the behavior of liquids?

Blue curve

A boat is moving towards tropical freshwater. Should the boat take in ballast water or let go of ballast water?

Remove ballast water since the water is less dense (warmer, less salty) so the boat experiences less buoyancy.

This picture shows what type of contaminants? List two.

Physical Contaminant – animal waste Biological Contaminant – bacteria, virus