Physical Science Semester 1 Review: Question Preview (ID: 28503)

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A material that can be represented by a chemical formula is a(n) _____________.
a) molecule
b) compound
c) pure substance
d) element

____________ is the measure of the amount of matter in a substance.
a) Mass
b) Weight
c) Volume
d) Force

Write the following number in scientific notation: 0.00008675
a) 8.675 x 10^5
b) 8675 x 10^-8
c) 8.675 x10^-5
d) 0.8675 x 10^4

A(n)___________ is the smallest unit of a substance that maintains all properties of that substance.
a) molecule
b) atom
c) element
d) compound

A _____________ change occurs when a substance changes composition by forming one or more new substances.
a) endothermic
b) physical
c) chemical
d) exothermic

The smallest unit of an element that maintains the properties of that element is called a(n) ___________.
a) atom
b) molecule
c) compound
d) chemical formula

What is the SI unit for pressure?
a) Pa
b) kg
c) mL
d) N

What is the density of a substance that has a mass of 15.6 g and and a volume of 5.8 mL?
a) 2.7 g/mL
b) 90.5 g/mL
c) 0.4 g/mL
d) 9.8 g/mL

_______________ states that the pressure of a gas at a constant volume is directly proportional to the absolute temperature.
a) Charles's Law
b) Gay-Lussac's Law
c) Boyle's Law
d) Archimedes' Principle

The kinetic energy of a substance is also known as ___________ energy.
a) potential
b) temperature
c) thermal
d) movement

The nonsolid state of matter is which the atoms/molecules are free to move past one another is called ____________.
a) solids
b) liquids
c) gases
d) fluids

What state of matter has definite shape and definite volume?
a) solid
b) liquid
c) gas
d) plasma

What determines the speed of particles within a particular substance?
a) speed and temperature
b) weight and mass
c) size and temperature
d) mass and speed

____________ is the ability to change or move matter.
a) Work
b) Energy
c) Power
d) Force

What happens to energy when ice melts to form water?
a) it is absorbed
b) it is released
c) it is created
d) it is destroyed

A(n) _________ is a factor that changes in an experiment in order to test a hypothesis.
a) variable
b) factor
c) volume
d) scientific method

_______________ is the measure of a straight-line distance between two points.
a) volume
b) mass
c) width
d) length

______________ is the measure of gravitational force exerted on an object.
a) weight
b) mass
c) kilograms
d) volume

___________ is the application of science for practical purposes.
a) science
b) technology
c) chemistry
d) physics

The 1st step to the scientific method is...
a) forming a hypothesis
b) observing
c) writing a conclusion
d) forming a question

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