Starter quiz
- How many millimetres are there in 1cm?
- '10' ✓
- Which of these tools is designed to help you draw accurate straight lines?
compass
ruler ✓
tape measure
measuring jug
- What type of movement does a wheel make on an axle?
- rotary ✓
- back and forth
- linear
- up and down
-
- Which of these best describes a diagram?
- a diagram shows real life
- a diagram shows a drawing or representation ✓
- a diagram is a written text
- a diagram can be heard
-
- Which of these is a softwood?
- oak
- pine ✓
- mahogany
- balsa
-
- Which of these is NOT part of a cam mechanism?
- axle
- slide
- follower
- cam
- lever ✓
-
Exit quiz
- What does a cross-section diagram show?
- external view
- internal view ✓
- close-up view
- distance view
-
- Cross-section diagrams are either on a horizontal or vertical ...
- plate
- plain
- plane ✓
- view
-
- Which of these has been cut vertically?
- Who would NOT use cross-section diagrams in their job?
- architects
- engineers
- product designers
- hairdressers ✓
- scientists
-
- What do we call a mechanical toy that uses a cam mechanism to animate a character or scene?
- 'automaton' ✓
- Which part of a cam mechanism can be changed to affect the movement of the follower?
- axle
- cam disc ✓
- crank
- animated character
-
Worksheet
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Presentation
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Lesson Details
Key learning points
- A cross-section diagram shows the inside of something.
- Cross section diagrams are usually vertical or horizontal planes.
- When drawing cross sections, one plane is the main view.
Common misconception
All cross-section diagrams show the vertical plane.
Cross-sections diagrams can show the horizontal or vertical planes and these can provide very different views.
Keywords
Cross-section - the inside view of a 3D object when cut straight through
Plane - a completely flat surface that goes on forever in all directions
Vertical - an up-down direction or position
Horizontal - side to side, like the horizon
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