Starter quiz
- Forces are ______ and pulls.
- 'pushes' ✓
- Which of the following is not caused by a force?
- slowing down
- changing temperature ✓
- speeding up
- changing direction
- changing shape
-
Which type of force do you use when you close scissors to cut paper?- push ✓
- pull
- twist
-
What unit are forces measured in?- seconds
- litres
- newtons ✓
- metres
-
- What is another name for force meters?
- Einstein meters
- Anning meters
- Newton meters ✓
- Attenborough meters
-
- Which of the following is a type of friction force?
- water resistance ✓
- gravity
- magnetism
-
Exit quiz
- A __________ is a simple mechanism or machine which is useful for lifting or moving things. A seesaw is an example of one of these.
- lever ✓
- force
- pulley
-
A lever allows a smaller force to have a __________ effect.- smaller
- lesser
- greater ✓
-
- When you use a lever, the object you are lifting or moving is called ...
- the load. ✓
- the effort.
- the pivot.
-
- When you use a lever, the force you apply to make an object move is called...
- the load.
- the effort. ✓
- the pivot.
-
The point along a lever on which it turns is called the ______.- 'pivot' ✓
- Look at the position of the pivot in these diagrams. In which one would the least effort be needed to lift the load?
a ✓
b
c
Worksheet
Presentation
Video
Lesson Details
Key learning points
- A lever is a simple mechanism or machine which is useful for lifting things.
- A lever allows a smaller force to have a greater effect.
- The object you are lifting is called the load.
- The force you apply to the load to make an object move is called the effort.
- A lever requires different amounts of force depending on where the pivot is positioned.
Common misconception
All levers work in the same way.
Teaching that the position of the pivot (fulcrum) and the effort compared to load can vary.
Keywords
Force - A force is a push or a pull. Forces can make objects move, slow down, change direction or change shape.
Lever - A lever is a simple mechanism or machine which is useful for lifting things.
Load - The load is the object you are lifting with a lever.
Effort - The effort is the force needed to do a job.
Pivot - The pivot is the fixed point where a lever turns.
+