Chemistry #1
Chemistry #2
Physics #1
Physics #2
Wild Card
100
According to this equation, what happened to the carbon and oxygen? C + O2 → CO2
They combined chemically to form a new compound
100
On the periodic table, what are the rows called?
Periods
100
Which of the following is an example of potential energy?
A. A battery powering a radio
B. A flag waving in the wind
C. A glass jar sitting on a shelf.
D. A ball rolling along a sidewalk
A glass jar sitting on a shelf
100
Which of the following could be used to convert light energy to electrical energy?
A. rotating coils in a magnetic field
B. chemical cell (battery)
C. a windmill
D. a solar cell
a solar cell
100
Which scientist described a model of the atom that included specific energy levels in which electrons are located?
A. Dalton
B. Rutherford
C. Thomson
D. Bohr
Bohr
200
How is the modern model of an atom different from the Bohr model?
The arrangements of the electrons are different.
200
Which conclusion can be drawn from Rutherford's gold foil experiment?
The atom has a nucleus. (It is positively charged. Most of the atom is empty space.)
200
Which of the following is an example of static electricity?
A. A dry-cell battery connected to wires lights up a light bulb.
B. A balloon sticks to a wall after it is rubbed with a piece of wool.
C. A magnet sticks to a refrigerator door made of metal.
D. A light switch that is turned on runs a ceiling fan.
A balloon sticks to a wall after it is rubbed with a piece of wool.
200
In order to determine the speed of an object, what measurements must be made? *Remember the triangle.
distance and time
200
This diagram represents a closed circuit with three bulbs and a 6 volt battery. If bulb 3 burns out in the circuit, what will most likely happen?
Bulbs 1 and 2 will not glow
300
What is the smallest and lightest element.
Hydrogen
300
Which situation provides the best evidence that a chemical reaction is taking place?
A. A solution freezes in the freezer.
B. Two solutions mixed in a beaker produce a solid.
C. A metal strip bends when heated.
D. A substance completely dissolves in water and the temperature of the solution remains constant.
Two solutions mixed in a beaker produce a solid.
300
The illustration shows a transverse wave. The wave's wavelength is the distance between points ......
1 and 3 or 2 and 4
300
Shauna uses a shovel to dig a hole to plant a tree. A shovel is an example of a compound machine because it is made up of what two simple machines?
lever and wedge
300
Which is the lowest point of a transverse wave?
Trough
400
A student makes a drawing of a carbon atom. What should the student show in the nucleus of the atom?
Protons/Neutrons
400
What type of bonding occurs when electrons are shared between atoms?
Covalent Bonding
400
What energy transformation occurs first in a coal-burning power plant?
A. Chemical to thermal energy
B. Thermal to mechanical energy
C. Electrical to chemical energy
D. Radiant to thermal energy
Chemical to Thermal energy
400
This diagram shows three horizontal forces acting on an object. Neglecting friction, what is the magnitude of force F, if the object remains at rest?
12N
400
This diagram represents a balloon that is moving in one direction while escaping air is moving in the opposite direction. What is the name of this Law?
Newton's 3rd Law: Action-reaction
500
What number should precede H2 in the chemical equation below in order for the equation to be balanced?
3
500
Which of these substances is an element?
A. Brass
B. Chlorine
C. Steel
D. Sugar
Chlorine
500
What is an SI metric unit of measurement that is used to record the heat transfer of a solution in a classroom investigation?
Degrees Celsius
500
Pat measures a small rubber ball and then makes three other balls of the same diameter from lead, foam, and wood. If they're all sitting still, which has the greatest inertia?
A.the wood ball
B. the rubber ball
C. the lead ball
D. the foam ball
The lead ball
500
To complete a project, 200,000 Joules of work are needed. The time taken to complete the project is 20 seconds. How much power is needed? (This "project" does NOT involve electricity.)
10,000 J/s