Transcript Science Jeopardy

Science Jeopardy
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C
D
E
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Final Jeopardy
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©Norman Herr, 2003
A-100
• What quantity requires only magnitude?
Give 2 examples of this quantity.
• Scalar – speed, mass, volume
Answer
Question
A-200
• Your friend says that the heavyweight champion of the
world cannot exert a force of 50 N on a piece of tissue
paper with his best punch. The tissue paper is held in
midair – no wall, no tricks. You: A) agree that it can't be
done. B) have reservations about this assertion. C)
disagree, for a good punch easily delivers this much
force.
• A
Answer
Question
A-300
• A bird sitting on the limb of a tree is moving
about 30 km/s with respect to the sun. If the
bird takes 1 second to drop down to a worm
below, the worm would be 30 km downrange
from the bird when it reached the ground. This
faulty reasoning is best countered with
Newton's
• Newton’s First Law
Answer
Question
A-400
• Newton’s third law of motion states that, when
one object exerts a force on a second
object, the second object exerts a(n) _____
force in the________ direction. These two
forces are called a(n) _______
.When you
push against an object, that push is called the
______ force. The force that the object exerts
on you is called the
_______force.
• Equal, opposite, force pair, action,
reaction
Answer
Question
A-500
• Find the value of the resultant vector
• 9cm (the other equation is for squares
only!)
Answer
Question
B-100
• What quantity requires both magnitude
and direction? Give 2 examples.
• Vector – velocity, acceleration, force
Answer
Question
B-200
• The force exerted on the tires of a car to
directly accelerate it along a road is
exerted by the:
• Road
Answer
Question
B-300
• An object ____________on Earth with
just as much force as the Earth pulls
downward on it.
• Pulls upward
Answer
Question
B-400
• In the balloon rocket lab, what was the
action force and what was the reaction
force?
• Action= air leaving balloon
Reaction=balloon moving
Answer
Question
B-500
• A Mack truck and a Volkswagen
traveling at the same speed have a headon collision. The vehicle that undergoes
the greatest change in velocity will be the
• Volkswagen
Answer
Question
C-100
• What does Newton’s 3rd Law state?
• For every action there is an equal and
opposite reaction
Answer
Question
C-200
• What make up force-pairs
• Action and reaction forces
Answer
Question
C-300
• A player catches a ball. Consider the
action force to be the impact of the ball
against the player's glove. The reaction to
this force is the
• Force the glove exerts on the ball
Answer
Question
C-400
• State Newton’s First Law of Motion and
the formula we used to find the distance
of a free falling object.
• An object in motion stays in motion –
d=1/2gt2
Answer
Question
C-500
• Since action and reaction forces are equal
and opposite, why don’t they cancel to
zero?
• because they influence the motion of
different objects. The force that A exerts
on B influences B's motion, and the force
that B exerts on A influences A's motion.
Answer
Question
D-100
• This quantity is represented with an
arrow:
• Vector Quantities
Answer
Question
D-200
• What should you do to get the sum of
vectors going different directions?
• Subtract!
Answer
Question
D-300
• What is the formula for acceleration and
explain how acceleration is a scalar or
vector component.
• a=v/t Vector because magnitude and
direction
Answer
Question
D-400
• A(n) ______________ to the system is
needed for acceleration
• External Force
Answer
Question
D-500
• When a pair of vectors are at right
angles, is the resultant always greater in
magnitude than either of the vectors
separately?
• YES
Answer
Question
E-100
• What are the sum of 2 or more vectors
called?
• Resultant
Answer
Question
E-200
• What should you do to get the sum of
vectors going the same direction?
• Add them together!
Answer
Question
E-300
• A automobile and a baby carriage
traveling at the same speed collide headon. The impact force is A) greater on the
automobile. B) greater on the baby
carriage. C) the same for both
• C
Answer
Question
E-400
• Arnold Strongman and Suzie Small each
pull very hard on opposite ends of a
massless rope in a tug-of-war. The
greater force on the rope is exerted by
• Both the same
Answer
Question
E-500
• As a ball falls, the action force is the pull of
Earth on the ball. The reaction force is the
• Pull of the ball’s mass on the Earth
Answer
Question
FINAL JEOPARDY
• ANSWER:
• QUESTION:
Answer
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