DISC NAT SCIENCE EXAM REVIEWS
EXAM QUESTIONS WITH CORRECT
ANSWERS
Which of the following is not one of the six types of energy? - ANSWER-Power
When a physicist talks about the conservation of energy, he/she means - ANSWER-that
the total amount of energy stays the same.
Plants typically capture nearly 100% of the solar energy available to them. - ANSWER-
false
The first law of thermodynamics states - ANSWER-while the kind of energy in a closed
system can change, the total amount cannot.
Electric energy is in the motion of electrons. - ANSWER-True
Thermal energy can be converted to other types of energy - ANSWER-True
If you drove to Monmouth University this morning, the gas in your car was converted to
the kinetic energy of the moving car. Now that the car is stationary, that energy no
longer exists. - ANSWER-False
Renewable energy means that - ANSWER-When energy is used to do some work, it will
be replaced-by more of that same type of energy
Dr. Einstein's famous equation E = mc2 makes a statement about mass and energy.
Which of the following most accurately describes that statement? - ANSWER-All mass
contains huge amounts of potential energy.
You drop a 1 kg ball and a 2 kg ball from 20 feet above the ground. Just before hitting
the ground, the 2 kg ball has more kinetic energy because - ANSWER-kinetic energy is
proportional to mass.
Which of the following is false about fossil fuels? - ANSWER-The natural processes that
form fossil fuels no longer take place on Earth.
The gravitational potential energy of an object can be determined if you know its -
ANSWER-height
mass
The first law of thermodynamics (the energy conservation law) implies that - ANSWER-
energy cannot be created.
, Which statement about heat and temperature is true? - ANSWER-Temperature is a
measure of how fast atoms and molecules are moving.
Which is not true about heat? - ANSWER-Heat is a form of energy.
Every object in this classroom is radiating heat.
A gallon of boiling water has more heat than a pint of boiling water.
Heat can move from one location to another.
An example of heat transfer by conduction is: - ANSWER-Heat from a curling iron is
transferred to your hair.
An example of heat transfer by radiation is: - ANSWER-Heat from a fire warms your
hands.
An example of heat transfer by convection is: - ANSWER-As you stand in the ocean,
you feel a current of warm water.
You place your cold hands near a fire to warm them. What is the predominant type of
heat transfer that occurs? - ANSWER-radiation
Atoms and molecules stop moving at absolute zero. - ANSWER-True
With respect to forces, - ANSWER-the gravitational force is weaker than the electrical
force.
If two objects repel each other due to an electrical force then - ANSWER-they have the
same charges.
Alternating current - ANSWER-Means that current flows first one way then the other
Which of the following will produce electricity? - ANSWER-Spinning a wire in a magnetic
field.
What would you need to make an electromagnet?
1. wire
2. permanent magnet
3. turbine
4. source of electric current
5. circuit breaker - ANSWER-1 and 4
Which of the following can produce magnetic fields? - ANSWER-moving electrical
charges
Which of the following is not true about ultraviolet light? - ANSWER-Its wavelengths are
longer than those of visible light.
EXAM QUESTIONS WITH CORRECT
ANSWERS
Which of the following is not one of the six types of energy? - ANSWER-Power
When a physicist talks about the conservation of energy, he/she means - ANSWER-that
the total amount of energy stays the same.
Plants typically capture nearly 100% of the solar energy available to them. - ANSWER-
false
The first law of thermodynamics states - ANSWER-while the kind of energy in a closed
system can change, the total amount cannot.
Electric energy is in the motion of electrons. - ANSWER-True
Thermal energy can be converted to other types of energy - ANSWER-True
If you drove to Monmouth University this morning, the gas in your car was converted to
the kinetic energy of the moving car. Now that the car is stationary, that energy no
longer exists. - ANSWER-False
Renewable energy means that - ANSWER-When energy is used to do some work, it will
be replaced-by more of that same type of energy
Dr. Einstein's famous equation E = mc2 makes a statement about mass and energy.
Which of the following most accurately describes that statement? - ANSWER-All mass
contains huge amounts of potential energy.
You drop a 1 kg ball and a 2 kg ball from 20 feet above the ground. Just before hitting
the ground, the 2 kg ball has more kinetic energy because - ANSWER-kinetic energy is
proportional to mass.
Which of the following is false about fossil fuels? - ANSWER-The natural processes that
form fossil fuels no longer take place on Earth.
The gravitational potential energy of an object can be determined if you know its -
ANSWER-height
mass
The first law of thermodynamics (the energy conservation law) implies that - ANSWER-
energy cannot be created.
, Which statement about heat and temperature is true? - ANSWER-Temperature is a
measure of how fast atoms and molecules are moving.
Which is not true about heat? - ANSWER-Heat is a form of energy.
Every object in this classroom is radiating heat.
A gallon of boiling water has more heat than a pint of boiling water.
Heat can move from one location to another.
An example of heat transfer by conduction is: - ANSWER-Heat from a curling iron is
transferred to your hair.
An example of heat transfer by radiation is: - ANSWER-Heat from a fire warms your
hands.
An example of heat transfer by convection is: - ANSWER-As you stand in the ocean,
you feel a current of warm water.
You place your cold hands near a fire to warm them. What is the predominant type of
heat transfer that occurs? - ANSWER-radiation
Atoms and molecules stop moving at absolute zero. - ANSWER-True
With respect to forces, - ANSWER-the gravitational force is weaker than the electrical
force.
If two objects repel each other due to an electrical force then - ANSWER-they have the
same charges.
Alternating current - ANSWER-Means that current flows first one way then the other
Which of the following will produce electricity? - ANSWER-Spinning a wire in a magnetic
field.
What would you need to make an electromagnet?
1. wire
2. permanent magnet
3. turbine
4. source of electric current
5. circuit breaker - ANSWER-1 and 4
Which of the following can produce magnetic fields? - ANSWER-moving electrical
charges
Which of the following is not true about ultraviolet light? - ANSWER-Its wavelengths are
longer than those of visible light.
