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PHYSICAL SCIENCE
EARTH SCIENCE
MATH
ENERGY
PERIODIC TABLE
100
They use fusion of hydrogen atoms to produce energy.
What is true for most main sequence stars?
100
Earth's axis tilts the northern hemisphere away from the Earth.
What is the major cause of the winter season in the United States?
100
35 Newton-Meters
What is the amount of work done if a 7-Newton force is exerted over a 5-Meter distance?
100
A spring scale
an object is lifted to the top of a bookcase. Which instrument would be best to use to measure the force required to life the object?
100
Second column from the left.
Some elements have two electrons in their outermost electron energy level. Which describes the MOST LIKELY location of these elements in the periodic table?
200
White Dwarf.
Sirius B is a star with a very high temperature with very low luminosity. What type of star is Sirius B?
200
Heat energy transferred through Earth's mantle.
Which best describes the cause of the movement of Earth's tectonic plates?
200
20 Newtons
How much force must be applied to a stationary 10-Kilogram object to accelerate it at a rate of 2-meters/second on a frictionless surface?
200
Potential
Which type of energy is stored in chemical bonds?
300
Location of an electron.
scientists use the electron cloud model to describe atomic structure. According to this model,which feature of an atom is described by probabilities?
300
2 molecules H2O2 to 1 Molecule O2
liquid hydrogen peroxide (H2O2) decomposes to produce water (H2O) and oxygen gas (O2) as shown by the chemical equation below. 2H2O2(I) -->2H2O(I)+ O2 (g) What is the ratio of (H2O2) to (O2) in this reaction?
300
The balloon became charged and was attracted to the opposite charge in induced in the wall.
In a class discussion, a teacher explained that when some objects are rubbed together, they become electrically charged. the teacher then rubbed a balloon with wool. and when she touched the balloon to a wall, it stuck to the wall. Which BEST explains why the balloon stuck to the wall?
400
Optics.
Microscopes represent a technological advance made possible by the application of scientific knowledge. Which field of scientific study provided important knowledge needed to develop the first microscope?
500
The one with the arrow pointing at a slant downwards.
There is an incoming ray striking a concave mirror. Which best represents a reflected ray?