Energy
Kinetic energy is the energy an object has due to its
a. Position
b. Mass
c. Motion
d. gravity
C. Motion
The number of waves that can pass a given point in one second.
a. Amplitude
b. Friction
c. Crest
d. Frequency
D. Frequency
The resistance that one object has when moving over another object is known as ___________.
a. Friction
b. Inertia
c. Unbalanced
d. Acceleration
a. Friction
The faster a particle moves, the ______ the temperature will be.
a. lower
b. higher
b. higher
The atoms in a ______________are more tightly packed together while the atoms in a ____________move freely and independently.
A. solid, liquid B. liquid, gas
C. solid, gas D. gas, solid
C. solid, gas
What will happen to the kinetic energy if you double the mass?
a. The kinetic energy would be cut in half
b. The kinetic energy would double
c. The kinetic energy would be the same
d. The kinetic energy would turn to potential energy
B. The kinetic energy would double
When the particles of the medium are displaced in a direction parallel to energy transport it is a________
a. Longitudinal
b. Transverse
c. Reflective
d. High-frequency
A. Longitudinal
What are two things you need to know if you are solving for speed?
a. time and distance
b. time and speed
c. speed and distance
d. distance and mass
A. time and distance
When a solid changes into a liquid, the atoms in a liquid will ____________the atoms in a solid.
A. move the same amount as
B. move less than
C. move more than
D. move at a slower rate
C. move more than
When a chemical reaction occurs, the products that are made will have physical and chemical properties that are _______________reactants.
A. the same as
B. similar to
C. opposite of
D. different from
Electric potential energy _________ as distance increases.
a. Increases
b. Decreases
c. Remains constant
B. Decreases
When electromagnetic waves are absorbed by an object, what happens?
a. Nothing
b. The object moves
c. The objects stops moving
d. The object become warmer
D. The object becomes warmer
What controls the orbits of objects in our solar system?
a. Speed and light
b. Inertia and gravity
c. Gravity and speed
d. Momentum and inertia
B. Inertia and gravity
32. The best way to identify an element is to use the atomic number, which is always the same as the number of ___________.
A. protons
B. neutrons
C. electrons
D. neutrons and electrons
A. protons
What is the correct formula for speed?
A. Speed = Distance x Time
B. Speed = Time x Distance
C. Speed = Distance/ Time
D. Speed = Time/ Distance
C. Speed = Distance/ Time
Which would have the least potential energy?
a. Ball sitting on the ground
b. Rubber band pulled back tight
c. Magnets close to each other but not touching
d. A statically charged balloon hovered over someone’s hair
A. Ball sitting on the ground
Objects or substances that absorb any wavelength of electromagnetic radiation become warmer and_______.
a. Produce a gas
b. convert the absorbed energy to infrared radiation (heat)
c. Convert the absorbed energy into chemical energy
d. Reflect back twice as much energy
B. convert the absorbed energy to infrared radiation (heat)
An empty box has a mass of 5 kilograms. You put a few objects into the box. Now the mass of the box increases to 25 kilograms. Which of the following statements is true?
A. When the mass increases, the amount of force needed to lift the box decreases.
B. When the mass increases, the amount of force needed to lift the box increases.
C. When the mass increases, the amount of force needed to lift the box remains the same.
D. When the mass increases, the amount of force needed to lift the box is not affected.
B. When the mass increases, the amount of force needed to lift the box increases.
Fluorine is an element with an atomic number of 9. What are two differences between the isotopes Fluorine-18 and Fluorine-19?
A. They both have different number of protons and different number of neutrons. B. They both have different number of neutrons and different mass number. C. They both have different number of electrons and different mass number. D. They both have different number of neutrons and different number of electrons.
B. They both have different number of neutrons and different mass number.
Anthony is testing whether a change in the height of the ramp will affect the speed at which a toy car goes down the ramp. What is one control for this experiment?
A. height of ramp
B. speed of car
C. mass of car
D. all of the above
C. mass of car
How do mass and speed relate to kinetic energy?
a. Increasing mass decreases kinetic energy
b. As mass and speed go up, the kinetic energy of an object increases
c. As mass and speed decrease, kinetic energy increases
d. Speed and mass do not affect kinetic energy
B. As mass and speed go up, the kinetic energy of an object increases
Which of these are are advantages of digital signals?
a. Digital signals do not break down over time
b. Digital signals are inexpensive
c. Digital signals are not stable
d. Digital signals are lighter than analog signals
A. Digital signals do not break down over time
5. What is the difference between speed and velocity?
A. Speed includes direction and velocity does not include direction.
B. Velocity includes direction and speed does not include direction.
C. Speed has a measurable quantity and velocity cannot be measured
D. Speed and velocity have no differences.
B. Velocity includes direction and speed does not include direction.
Elements that have similar chemical properties, such as reactivity and the same number of valence electrons, are usually located _______________.
A. in the same group
B. in the same period
C. across from each other D. to the left and right of one another.
A. in the same group
A force of 200 N is pushing down and another force of 200 N is pushing up. A third force is pushing with 50 N to the right and a fourth force is pushing with 35 N to the left. What is the net force?
A. 400 Newtons up and 15 Newtons right B. 400 Newtons down and 15 Newtons left C. 15 Newtons left D. 15 Newtons right
D. 15 Newtons right