Starter quiz
- Which of the following is an example of a lever?
- roundabout
- seesaw ✓
- bike wheel
- scissors ✓
-
- What does the word 'rigid' mean?
- unable to bend ✓
- bendy
- has a pivot
-
- What can be used to create a pivot point when making a lever out of card?
- sticky tape
- split pins ✓
- sticky tack
-
The movement on a lever mechanism is from the ...- bar
- pivot point ✓
- base
-
Exit quiz
- Match the keywords to their meaning:
- slider⇔a bar which moves backwards and forwards along a straight line ✓
- guide⇔piece of material that keeps mechanisms in place and controls movement ✓
- slot⇔the hole through which a lever or slider is placed to enable movement ✓
- Choose the correct sentence below:
- The slot needs to be a bit longer than the slider bar. ✓
- The slot needs to be a bit shorter than the slider bar.
- The slot needs to be the same size as the slider bar.
-
What part of the slider mechanism keeps the slider in place?- guide ✓
- slot
- slider
- picture
-
- What sort of motion does a slider have?
- back and forth ✓
- round and round
- swinging in an arc
-
Worksheet
Loading worksheet ...
Presentation
Loading presentation ...
Video
Lesson Details
Key learning points
- Mechanisms are systems that make something move and include sliders.
- Sliders are rigid bars which move backwards and forwards along a straight line.
- Sliders have a guide, which is used to keep it in place.
- When constructing sliders, it is important to cut and measure accurately.
Common misconception
Slider mechanisms have a pivot points.
Slider mechanisms do not have pivot points and therefore do not use split pins. Slider mechanisms use a guide and a slot. They move in a straight line, rather than turning or pivoting.
Keywords
Slider - a bar which moves backwards and forwards along a straight line
Guide - a piece of material used to keep mechanisms in place and control movement
Slot - the hole through which a lever or slider is placed to enable movement
+