AnswerWithUnits1
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Answer is a Number or Formula with Units
This PG code shows how to require students to enter units with their answers.
- Download file: File:AnswerWithUnits1.txt (change the file extension from txt to pg when you save it)
- File location in NPL:
FortLewis/Authoring/Templates/DiffCalc/AnswerWithUnits.pg
| PG problem file | Explanation |
|---|---|
|
Problem tagging: |
|
DOCUMENT(); loadMacros( "PGstandard.pl", "MathObjects.pl", "parserNumberWithUnits.pl", "parserFormulaWithUnits.pl", ); TEXT(beginproblem()); |
Initialization: |
Context("Numeric")->variables->are(t=>"Real");
$h = Formula("-16 t^2 + 16");
$v = $h->D('t');
$v1 = $v->eval(t=>1);
$a = $v->D('t');
$answer[0] = FormulaWithUnits("$v","ft/s");
$answer[1] = NumberWithUnits("$v1","ft/s");
$answer[2] = FormulaWithUnits("$a","ft/s^2");
|
Setup: |
Context()->texStrings;
BEGIN_TEXT
Suppose the height of a falling object, in feet
above the ground, is given by \( h(t) = $h \)
for \( t \geq 0 \), where time is measured in
seconds.
$BR
$BR
(a) What is the velocity of the object? Include
units in your answer.
$BR
\{ ans_rule(20) \}
\{ helpLink("units") \}
$BR
$BR
(b) What is the velocity of the object when it
hits the ground? Include units in your answer.
$BR
\{ ans_rule(20) \}
\{ helpLink("units") \}
$BR
$BR
(c) What is the acceleration of the object?
Include units in your answer.
$BR
\{ ans_rule(20) \}
\{ helpLink("units") \}
END_TEXT
Context()->normalStrings;
|
Main Text: |
$showPartialCorrectAnswers = 1;
foreach my $i (0..2) {
ANS( $answer[$i]->cmp() );
}
|
Answer Evaluation: |
Context()->texStrings;
BEGIN_SOLUTION
${PAR}SOLUTION:${PAR}
Solution explanation goes here.
END_SOLUTION
Context()->normalStrings;
COMMENT('MathObject version.');
ENDDOCUMENT();
|
Solution: |
