Moving Variables Prelesson
S = ΔD/ΔT Solve for ΔD.
When it says "solve for ΔD", it means to "isolate ΔD" or get "ΔD" by itself.
Your final answer will look like which of the following?
- ΔD =
- ΔT =
- S =
S = ΔD/ΔT Solve for ΔD.
Get ΔD by itself.
To get ΔD by itself I need to move what?
- S
- ΔD
- ΔT
S = ΔD/ΔT Solve for ΔD
Get ΔD by itself by moving ΔT.
ΔT is doing what, right now? (What math function?)
- addition
- subtraction
- multiplication
- division
S = ΔD/ΔT Solve for ΔD
Get ΔD by itself by moving ΔT.
ΔT is division.
What math function do you need to use to move ΔT?
- addition
- subtraction
- multiplication
- division
S = ΔD/ΔT Solve for ΔD
Get ΔD by itself by moving ΔT.
ΔT is division, so multiply on both sides by ΔT.
What is your answer for ΔD?
- ΔD = SΔT
- ΔD = S/ΔT
- ΔD = S + ΔT
- ΔT = ΔDS
F = ma solve for "a".
To solve for "a" you have to move what?
- F
- m
- a
F = ma solve for "a".
Solve for "a" by moving "m".
What math function is "m" performing?
- addition
- subtraction
- multiplication
- division
F = ma solve for "a".
Solve for "a" by moving "m".
"m" is performing multiplication.
To move "m" what do you need to do?
- add "m" to both sides
- subtract "m" from both sides
- multiply by "m" on both sides
- divide by "m" on both sides
F = ma solve for "a".
Solve for "a" by moving "m".
"m" is performing multiplication, so divide by "m" on both sides.
What would be your final answer?
- a = Fm
- a = F/m
- F/a = m
- a = F - m
ΔD = D2 - D1 Solve for D2.
To solve for D2, what do you need to move?
- ΔD
- D2
- D1
- nothing
ΔD = D2 - D1 Solve for D2.
To solve for D2, move D1.
What math function is D1 performing?
- addition
- subtraction
- multiplication
- division
ΔD = D2 - D1 Solve for D2.
To solve for D2, move D1.
D1 is subtracting.
To move D1, what will you have to do?
- add D1 to both sides
- subtract D1 to both sides
- multiply D1 to both sides
- divide D1 to both sides
ΔD = D2 - D1 Solve for D2.
To solve for D2, move D1.
D1 is subtracting, so add D1 to both sides.
What is your answer?
- D2 = ΔD + D1
- D2 = ΔD - D1
- D2 = ΔD/D1
- D2 = ΔD(D1)
W = Fd solve for "F".
To solve for "F" you have to move what?
- W
- F
- d
W = Fd solve for "F".
Solve for "F" by moving "d".
What math function is "d" performing?
- addition
- subtraction
- multiplication
- division
W = Fd solve for "F".
Solve for "F" by moving "d".
"d" is performing multiplication.
To move "d" what do you need to do?
- add "d" to both sides
- subtract "d" from both sides
- multiply by "d" on both sides
- divide by "d" on both sides
W = Fd solve for "F".
Solve for "F" by moving "d".
"d" is performing multiplication, so divide by "d" on both sides.
What would be your final answer?
- F = Wd
- F = W/d
- W/F = d
- F = W - d