Matter
The ingredients in a chemical reaction are called the
a. products
b. ingredients
c. reactants
d. samples
C. Reactants
Kinetic energy is the energy an object has due to its
a. Position
b. Mass
c. Motion
d. gravity
The number of waves that can pass a given point in one second.
a. Amplitude
b. Friction
c. Crest
d. Frequency
D. Frequency
The cell membrane
a. Can only be found in plant cells
b. Is a hard shell around the cell
c. Does not exist in some cells
d. Controls the movement of materials coming in and out of the cell
D. Controls the movement of materials coming in and out of the cell
What is the force that resists motion between two surfaces that are in contact?
a. Gravity
b. Friction
c. Inertia
d. Acceleration
B. Friction
Change in state of matter is a
a. A chemical change
b. A physical change
c. A permanent change
d. unchangeable
B. Physical Change
Electric potential energy _________ as distance increases.
a. Increases
b. Decreases
c. Remains constant
B. Decreases
The amplitude of a wave depends on how much energy is carried by the wave. What happens to two waves that are identical except Wave A has greater amplitude than Wave B?
a. The wave with the greater amplitude will carry more energy
b. The wave with the lower amplitude will carry more energy
c. Wave A and Wave B will carry the same amount of energy
d. Amplitude is not related to the wave’s energy
A. The wave with the greater amplitude will carry more energy
What is a difference between a plant and an animal cell?
a. animal cells have chloroplasts
b. Plant cells have a cell wall and animal cells do not
c. Animal cells do not have ribosomes and plant cells do
d. All of the above
B. Plant cells have a cell wall and animal cells do not
Unless a balanced force is applied, what will an object do naturally?
a. Begin to change direction
b. Speed up until it reaches its maximum speed
c. Slow down
d. Maintain its current speed and direction
D. Maintain its current speed and direction
Temperature is
a. Thermal energy
b. Heat being transferred
c. The measurement of the average kinetic energy of particles
d. Kinetic heat being generated
C. The measurement of the average kinetic energy of particles
If you were building a thermos to keep liquid warm, what type of materials would you look for?
a. Insulators
b. Conductors
c. Liquid
d. None of these
A. Insulators
When a wave’s energy is transferred to an object, rather than being transmitted through it or reflected by it, It is__________.
a. Reflected
b. Transmitted
c. Absorbed
d. Refracted
C. Absorbed
What is the most common type of blood cell?
a. Red blood cell
b. White blood cell
c. platelets
A. Red blood cell
Two students push a box in opposite directions.
Student A pushes with 50 N.
Student B pushes with 30 N.
What is the net force and what direction will the box move?
A. 20 N toward Student B
B. 20 N toward Student A
C. They will stay the same
D. The will both fall
A. 20 N toward Student B
An ice cube melts on a countertop
a. Physical Reaction
b. Physical Change
c. Chemical Reaction
d. Chemical Change
B. Physical Change
What type of heat transfer requires direct contact with the item being heated?
a. Convection
b. Radiation
c. Conduction
C. Conduction
Light shining through a glass window to provide natural sunlight in a house is an example of ____________?
a. Absorption
b. Refraction
c. Reflection
d. transmission
D. transmission
In some systems cells become specialized. This means
a. They are diseased
b. They are immune to disease
c. They have a specific structure and function
d. All of these
C. They have a specific structure and function
The direction of the outside magnetic field is from
a. north pole to south pole
b. south pole to north pole
c. Inside to outside of the magnet
d. Front to back
A. north pole to south pole
If you were designing a hot pack, which reaction would you want to have?
a. Combustion reaction
b. Precipitate reaction
c. Endothermic reaction
d. Exothermic reaction
D. Exothermic reaction
A roller coaster is sitting at the top of a hill has _____________
a. Chemical energy
b. Potential energy
c. Mechanical energy
d. Kinetic energy
b. Potential energy
The Moon does not produce its own light. How can we see the Moon from Earth?
a. The Moon reflects light from the Sun
b. The Moon reflects light from Earth
c. You cannot see the Moon
d. The Moon produces its own light
A. The Moon reflects light from the Sun
Which organelle is often called the "powerhouse" of the cell because it helps release usable energy from food?
a. Lysosomes
b. Nucleus
c. Mitochondria
d. All the above
C. Mitochondria
A student travels 20 meters in 5 seconds. What is the student's average speed?
a. 100 m/s
b. 20 m/s
c. 5 m/s
d. 4 m/s
D. 4 m/s