When a person is sledding down a hill where do they have the most kinetic energy?
What is at the bottom of the hill when they are going the fastest
100
You have a different rock with a volume of 30cm3 and a mass of 60g.
What is its density?
What is 2.0 g/cm3
100
The chemical symbol for Cobalt (atomic number 27) is correctly represented as:
What is Co
100
Which of the following matches the correct definition to an example?
Chemical Change: My foot changes color
Physical Change: My microwave exploded
Chemical Change: My dog ate my homework
Physical Change: My homework burned in a fire
What is Chemical Change: My dog ate my homework
100
Which of the name the sequence of transformations that take place in a battery-powered watch?
What is when the counterweight is raised, it gains this energy as potential energy.
200
A cup of gold colored metal beads was measured to have a mass 425 grams. By water displacement, the volume of the beads was calculated to be 48.0 cm3. Given the following densities, identify the metal.
Gold: 19.3 g/mL
Copper: 8.86 g/mL
Bronze: 9.87 g/mL
What is Copper?
200
Elements on the Periodic Table are in exact order, from left to right, according to their…
What is Atomic number
200
Is ripping paper a chemical or physical change?
What is Physical Change?
200
What best describes the energy change that is occurring as a boy rides a skateboard down a steep hill?
What is
Kinetic energy increases and potential energy decreases.
300
According to the law of conservation of energy _______.
What is Energy cannot be created or destroyed
300
A graduated cylinder is used to measure_____.
What is Volume?
300
All of the following information is found in an Element box on the Period Table, EXCEPT:
Symbol
Density
Name
Mass
What is Density
300
What kind of properties can only be observed when a substance changes into a different substance?
What is
chemical properties
300
When energy changes from one form to another (for example, chemical energy → heat → light), it is known as:
What is Energy Transformation?
400
What would have the greatest kinetic energy?
A car driving down a hill
A person running down a hill
A ball rolling down a hill
What is A car driving down a hill
400
Oil floats on water. The most accurate reason for this is
What is oil is less dense than water
400
What is an element?
What is A PURE SUBSTANCE!!!!!!
400
Unexpected changing of color is a sign of a _________ change.
What is Chemical Change
400
An ecosystem could not survive without this form of energy.
What is Radiant Energy
500
What is an example of kinetic energy at work?
A ball lodged in a tree
A frisbee flying through the air
A car in the garage
What is A frisbee flying through the air
500
You have a rock with a volume of 15cm3 and a mass of 45 g. What is its density?
What is 3.0 g/cm3
500
Please define a compound......
What is contains at least two different elements.
500
Name two pieces of a chemical change has taken place
What is formation of precipitate,
Color Change,
Temperature Change
Formation of gas
500
Mark places new batteries in his CD player and turns it on. Identify the correct energy transformation.
What is Chemical → electrical → mechanical and sound