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Samuels PS Force
Test Description: Physical Science Force
Instructions: Answer all questions to get your test result.
1) When air resistance stops a falling object from speeding up, the object has reached its _________ velocity.
A
drag
B
terminal
C
Cavendish
D
free-fall
2) What type of friction affects sliding objects already in motion?
A
static
B
coefficient
C
kinetic
D
rolling
3) What type of friction prevents objects from moving?
A
rolling
B
coefficient
C
static
D
kinetic
4) Which of the following surfaces would offer the least friction for a moving object?
A
Pavement/Roads
B
Grass
C
Carpet
D
Ice
5) A force that causes objects to travel in a curved path rather than a straight line is _____ force.
A
gravitational
B
friction
C
centrifugal
D
centripetal
6) The discovery of the law of universal gravitation is credited to which scientist?
A
Ernest Rutherford
B
Galileo Galilei
C
Henry Cavendish
D
Isaac Newton
7) Two objects attracting each other through force proportional to their masses is stated in the:
A
Law of Motion
B
Law of Acceleration of Gravity
C
Law of Universal Force
D
Law of Universal Gravitation
8) Rubbing two pieces of sandpaper together demonstrates which cause of friction?
A
none of these
B
repulsion
C
denaturing
D
attraction
9) What is the SI unit for force?
A
Coulomb
B
Joule
C
Watt
D
Newton
10) Weight is:
A
the gravitational force on an object
B
velocity through space
C
the mass of an object
D
the amount of drag an object produces
*select an answer for all questions
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