Worksheets1st Semester Science Review
Total questions: 70
Worksheet time: 56mins
When a rubber band stretched it has____ energy
nucular
potential
kinetic
chemical
A chemical change is different than a physical change because in a chemical change...
Chemicals are used
A new substance is formed and in a physical change no new substance is formed
Molecules do not physically touch
The change can be seen but in a physical change it cannot
An element and an atom are different but related because...
A particular element is made up of many different types of atoms
A molecule is the same as an atom
An element is made up of all the same type of atom
An element is smaller than an atom
The density of an object is...
The mass divided by the volume D = m/v
The volume divided by the mass D = v/m
The same as its weight
The same as the size of the object
If two objects have the same volume but one has a greater mass, the one with greater mass...
Has a lower density
Has a higher density
Will float
Will sink
If you cut a wooden block in half, each half would have...
Half the density of the original piece
Twice the density of the original piece
The same density as the original piece
No density at all
Density is a characteristic property of a substance. This means that the density of water
Stays the same regardless of the volume
Changes depending on the volume
Is greater for a greater amount of water
Is less for a smaller amount of water
An object will float in a liquid if it is...
More dense than the liquid
Less dense than the liquid
Lighter than metal
Shaped like a ball
A tiny piece of sand is very light but sinks in water. This is because...
Sand is a solid
Sand is less dense than water
There is more water than sand
Sand is more dense than water
Nails rusting is a...
Physical Change
Chemical Change
Water boiling is a...
Physical Change
Chemical Change
Crushing a soda can is a...
Physical Change
Chemical Change
Baking a cake is a...
Physical Change
Chemical Change
Ice melting is a...
Physical Change
Chemical Change
Hypothesis
the steps taken in an experiment
any variable that does not change during an experiment
a prediction and states whether the independent variable will have an effect on the dependent variable
(6.8A) According to the above diagram, at what point would the roller coaster car have the greatest kinetic energy and the least potential energy?
3
4
5
6
(6.8A) According to the above diagram, at what point would the roller coaster car have the greatest kinetic energy and the least potential energy?
A
B
C
D
(6.8D) Which description of motion is best represented by this graph?
The speed of the car is decreasing.
The speed of the car is increasing.
The speed of the car is constant.
The speed of the car is zero.
(6.8D) Which statement below best describes the motion of the car?
The car is stopped for two minutes, travels at a constant speed for two minutes, and then stops.
The car is stopped for two minutes, increases its speed over two minutes, and then stops.
The car travels at a constant speed for two minutes, increases its speed over two minutes, and then travels at a constant speed for two more minutes.
The car increases its speed for two minutes, travels at a constant speed for two minutes, and then increases its speed over the next two minutes.
(6.8D) What is a valid conclusion that the student can make about the runner’s motion?
The average speed of the runner remained constant as the runner covered more distance.
The average speed of the runner increased as the runner covered more distance.
The average speed of the runner decreased as the runner covered more distance.
The average speed of the runner increased and then remained constant as the runner covered more distance.
(6.8D) Which graph below best represents the motion of the dog in terms of distance from home over time?
Condensation is...
the change of the state of matter from the gas phase into the liquid phase.
any product of the condensation of atmospheric water vapor that falls under gravitational pull from clouds.
Evaporation is...
the change of the state of matter from the gas phase into the liquid phase.
a type of vaporization that occurs on the surface of a liquid as it changes into the gas phase.
The smallest substance of matter that still contains all the properties of that matter is called a(n) _______________.
proton
atom
electron
compound
Very small negatively charged particles of an atom are called _____________.
atoms
protons
neutrons
electrons
A specific type of atom with unique properties is called an ____________.
element
compound
molecule
neutron
Everything in the universe that has mass and takes up space is called ______________.
matter
compounds
electrons
quarks
The particles of an atom that do not have any electric charge are called _________________.
electrons
neutrons
protons
mass
The center of an atom where protons and neutrons are found is called __________________.
an electron
the electron cloud
the nucleus
metalloid
The positively charged particles of an atom are called ____________.
protons
electrons
neutrons
electron cloud
Energy that an object has due to its motion.
kinetic energy
sound energy
nuclear energy
thermal energy
The rule that energy cannot be created or destroyed.
law of conservation of energy
gravitational potential energy
nuclear energy
elastic potential energy
The energy an object has because of its position; also the internal stored energy of an object, such as energy stored in chemical bonds.
electrical energy
potential energy
electromagnetic energy
thermal energy
Potential energy that depends on the height of an object.
thermal energy
elastic potential energy
gravitational potential energy
nuclear energy
The factor being tested by the scientist is called:
Dependent Variable
Independent Variable
Control Group
Constants
What charge is the proton?
positive
no charge (neutral)
negative
Senaida-charged
What charge is the electron?
Logan-charged
negative
positive
no charge (neutral)
What charge is the neutron?
no charge (neutral)
positive
negative
Katlyn-charged
When the arrow is pulled back...
Potential
Kinetic
As it is moving....
Potential
Kinetic
What is a Variable?
a single factor that is isolated and tested in an experiment. Could be changed or not changed.
Information using the senses to describe observations.
Based on attitudes, beliefs, or opinions instead of verifiable evidence
an explanation that ties together many hypotheses and observations
What is a Constant?
variable that the investigaor chooses to change in an experiment
the variable that may change as a result or a response.
an individual group kept constant and is a standard of comparison in the "natural" state.
all the variables in the experiment that are kept the same through all trials.
What is an atom?
Organizes the elements based on their repeating properties.
the smallest unit of ordinary matter that makes up a chemical element.
A pure substance that cannot be broken down by chemical or physical means.
A one- or two-letter abbreviation of an element's name.
A group of atoms bonded together, is a...
molecule
atom
factor
electron
Mechanical energy, stored energy, or energy caused by its position is called...
Kinetic Energy
Potential Energy
Force
Velocity
What is the energy an object has because of its motion?
Potential Energy
Force
Kinetic Energy
Speed
