Pruning trees

Pruning trees

Pencil and paper
Overview
Connecting to the Curriculum
Marking Student Responses

A gardener using pruning loppers finds she can cut through thicker branches easily when she holds the handles at the end, as far from the blades as possible.

a) What type of simple machine are the loppers? _______________
 
b)
Why did holding the handles as far from the blades as possible make cutting the branches easier?
 

 
 
 
Level:
5
Curriculum info: 
Description of task: 
Task: Answer two questions about pruning loppers. Assessment focus: levers.
Answers/responses: 
    Y10 (3/98)
a) Lever difficult
b) Greater force can be applied to the branch. difficult