Preknowledge

Preknowledge

Preknowledge

Essential Mass Weight Displacement Force Free Body Diagram Equilibrium Slope Click and Drag Optional Period

Multichoice Question

Multichoice Question

1. What is answer best describes the phrase "Click and Drag"? (a) A mouse trap snaps closed. The mouse walks away dragging the cheese. → Incorrect, think about computer mice. (b) Navigate the cursor over the object you wish to move. Click and hold the (left) mouse button. Drag to object to the desired location. Release the mouse button. → Absolutely correct! Your score is 0 / 0

Reflection

Reflection

For our purposes it is a computer related term. Thus choice (b) is the best answer.

If you are uncomfortable with the concept of weight, you should try this question.

Multichoice Question

Multichoice Question

An astronaut, whos mass is 100 kg, lands on the planet Helicon. The acceleration due to gravity on Helicon is 5 m s-2. What is the best answer for the astronauts weight on the planet Helicon? Add a Hint (a) 5 N Incorrect, think about the definition of force. (b) 500 N Absolutely correct! (c) 100 N Add some Feedback

Reflection

Reflection

The force is the mass multiplied by the acceleration. Therefore choice (b) is the best answer.

If you are uncomfortable with the concept of slope, you should try this question before moving on.

Multichoice Question

Multichoice Question

A straight line on a graph rises 6 metres while it runs 2 seconds. What is the best answer for the slope of the line? Add a Hint (a) 3 metres/second Absolutely Correct! (b) 1/3 seconds/metre Incorrect, think about the definition of the slope. (c) 3 m Incorrect, think about the definition of the slope.

Reflection

Reflection

The slope is defined as the rise divided by the run. Therefore choice (a) is the best answer.

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