PS Final Exam Review Question Preview (ID: 47068)
Final Exam.
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Each vertical column on the periodic table is called a(n)
a) period
b) group
c) element
d) property
What is the work done by a machine on an object?
a) Power
b) work input
c) work output
d) lever
What is physical science about?
a) relationship between matter and energy
b) relationship between matter and light
c) relationship between molecules and matter
d) relationship between light and energy
What are the two main branches of physical science?
a) chemistry and biology
b) biology and physics
c) geology and chemistry
d) chemistry and physics
In the formula P= V x I what does the I stand for
a) current
b) intensity
c) voltage
d) resistance
A hiker's velocity begins at 1.8 m/s uphill and changes to 1.5 m/s uphill. How do you know that the hiker has a negative acceleration?
a) His direction changed
b) His direction was unchanged
c) His speed increased
d) His speed decreased
Which of the following are two factors that determine speed?
a) acceleration and time
b) velocity and time
c) distance and time
d) motion and time
Bases have a
a) sour taste
b) sweet taste
c) slippery feel
d) mild taste
When the net forces equal 0 N they are which of the following?
a) balanced
b) unbalanced
c)
d)
Where are electrons likely to be found?
a) nucleus
b) electron cloud
c)
d)
What is the net force on an object when you combine a force of 10 N north with a force of 5 N south?
a) 5 N South
b) 15 N north
c) 50 N north
d) 5 N north
Acids have a
a) sour taste
b) bitter taste
c) slippery feel
d) soapy feel
Which of the following is NOT an example of a physical change
a) the shaping of a gold bar
b) the melting of a Popsicle
c) the explosion of fireworks
d) the sanding of a piece of wood
Which of the two factors that determine the amount of friction?
a) the force and the roughness of the surfaces
b) hills and valleys and the roughness of the surfaces
c) the force and how much surfaces come in contact
d) the force and the weight exerted on the surfaces
What is the smallest particle inot which an element can be divided and still be the same substance?
a) electron
b) neutron
c) proton
d) atom
What method is involved when charges in an uncharged metal object are rearranged without direct contact with a charged object?
a) friction
b) induction
c) convection
d) conduction
What is matter?
a) the ability to do work
b) the stuff everything is made of
c) the stuff that is light enough to float
d) the stuff that matters
What would you use to see if something is charged?
a) electric reader
b) thermometer
c) electroscope
d) electric force
What two things must happen for work to be done?
a) the object must move and there must be an output force
b) the object must move in the opposite direction of the force
c) the object must move in the same direction as the force
d) the object must move and the mechanical advantage must be greater than 1
According to Newton's first law of motion a moving object that is not acted on by an unbalanced force will
a) remain in motion
b) eventually come to a stop
c) change its momentum
d) accelerate
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