Jeopardy

1
Solving math problems on the Science TAKS.
What is the unknown?

What are the other two units?
The formula chart
Calculator clues.
The signs of the triangle.
How to put formulas into the triangle.
How to use the triangle method to solve for an
unknown..
How to solve for an unknown using the reverse
the sign method.
How to solve for an unknown using the cross
multiply method.
2
What is the unknown?
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Look at the last sentence of the question.
Double underline the unknown.
The unknown usually follows after what or how
many or when or how far etc.
See sample
3
Velocity and speed are the same thing, except
velocity should include the direction that the
object is going. Sometimes on TAKS they use the
word velocity equally as speed.
Anything moving vertical
See how to put formulas into a triangle
Push current Resistance
4

• A mechanic used a hydraulic lift to raise a
• 12,054 N car 1.89 m above the floor of a
• garage. It took 4.75 s to raise the car. What
• was the power output of the lift?
• A 489 W
• B 1815 W
• C 4796 W
• D 30,294 W

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5
What are the other two units?
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Sometimes there are clearly only two other
numbers in the question. The units of those
numbers tell you about the formula to look for on
the formula chart.
Sample of units and their meaning on the formula
chart.
Other times, only one number is given and an
illustration gives the other number.
1. Sample of only one number given.
2. Sample of when only one number is given
you use the gravity number.
6
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7

• Which wave has the greatest velocity?

1 x 2
Back
2 x 8
3 x 3
4 x 1
Velocity frequency times wavelength
8
An ant crawled from Point A to Point B in 4.0
seconds. To the nearest tenth, what was the ants
speed in centimeters per second? Record and
bubble in your answer on the answer document.
4cm 4 s 1 cm/s
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9

• How many newtons of force does a 50.0 kg
• deer exert on the ground because of gravity?
  Record and bubble in your answer on the answer
  document.

Force mass x acceleration of gravity
50 kg x 9.8
490
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10
The signs of the triangle.


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x
11
How to use the triangle method
Cover the unknown with your finger. Do the
function between the other two.
a


b
x
c
c a b
b a c
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a b x c
12
How to put formulas into the triangle.
If part of the formula is already on top
(numerator) it stays on the top.
m
work
d
momentum
force
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d
v
velocity
distance
t
s
mass
mass
acceleration
force
If the formula doesnt have a fraction, the
loner gets to be on top.
13
Solving for an unknown using the reverse the
sign method
Speed distance / time
If distance is the unknown,
x time
x time
Speed distance / time
Speed distance / time
Speed x time distance
Another sample of reverse the sign
14
Solving for an unknown using the reverse the
sign method
Speed distance / time
If time is the unknown,
Speed distance/time distance
Speed distance distance/time distance
Speed distance time
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15
Solving for an unknown using the cross multiply
method
If time is the unknown,
Speed distance 1 time

distance x 1 speed time
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16
Remember that ? is pushed into the calculator
as 5 8 or 5 / 8
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