Physical Properties
Elements and Compounds
Rocks and Mountains
Forces and Work
Randoms!
100
What are two ways that we have measured the volume of an object in class?
Measuring and multiplying an objects length x width x height and water displacement.
100
What is a compound?
A compound is formed by two or more elements combined chemically.
100
What are the two main things required to form metamorphic rocks?
Heat and pressure
100
If you have unbalanced forces working upon each other, what will happen?
Some sort of motion or change will occur.
100
How many types of coal are there?
4 types
200
If an object has a mass of 8g and a volume of 4mL, what is its density?
2g/mL
200
How do you determine the number of elements in a compound?
You count the number of capital letters.
200
Where are metamorphic rocks formed?
They must be formed underground because they need both heat and pressure.
200
When we used simple machines to do work, do we need to apply more force or less force?
Less force!
200
What is potential energy?
Potential energy is energy stored due to an object's position.
300
If an object has a mass of 9g and a volume of 3cm3, what is its density?
3g/cm3
300
Is H20 an element or a compound? Why?
H20 is a compound because it contains two separate elements (H and O) combined chemically.
300
What type of plate movements causes the formation of folded mountains?
Plates converging or coming together.
300
What would be the best tool to use to measure the difference in the forces used to lift an object or to pull it up an inclined plane?
A spring scale
300
A boy is lifting a heavy box with the help of a pulley. What would happen if we added another pulley wheel into this system?
The boy would be able to life the box using less force than he did with only one pulley
400
How do we test a mineral's hardness?
You test hardness by attempting to scratch the mineral with various objects. If a mineral is scratched by an object such as a penny, it has a hardness of less than the penny. You rank hardness on the Mohs Scale of Hardness 1-10.
400
How many elements are in this chemical formula - NaOH?
3 Elements (Na=Sodium, O=Oxygen, H=Hydrogen)
400
If a mineral was put under extreme pressure and heat, but was not melted down, what would it become?
A metamorphic rock
400
What is a force?
A force is a push or a pull that has a definite size and direction.
400
What is the equation for calculating density?
Density = Mass/Volume (Mass divided by Volume)
500
Mineral A has a hardness of 6 and Mineral B has a hardness of 4. What would happen if you used mineral A to scratch Mineral B?
It would leave a mark on B because A is harder than B.
500
How many elements are in this chemical formula? AlPO4
3 Elements (Al=Aluminum, P=Potassium, O=Oxygen)
500
How might you explain finding a fossil of an ancient fish at the top of the Rocky Mountains?
The land that used to be the floor of the ocean was lifted up over time due to plate tectonics.
500
How does the steepness of an inclined plane affect the amount of force used to travel up it?
The steeper the inclined plane, the MORE force you need to go up it.
500
At what point on a roller coaster would the cart have the most potential energy?
It would have the most potential energy at the top of the largest hill - just before it starts to go down.
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