Garnock Academy Level 3 Science
Forces Homework 1
SCN 3-07a
Name _________________________________
Teacher
Date to be returned __________________
Mark
1
a)
________
What causes friction?
1
b)
What type of materials produce most friction?
1
c)
Why is it difficult to walk on an icy pavement?
1
2
What type of energy is always produced by friction?
1
3
A wooden block is pushed along a bench. Complete the following table to
show the missing forces.
2
Pushing Force / N
Frictional Forces / N
10N
10N
10N
6N
5N
Unbalanced Force / N
10N
CfE Science Level 3: SCN 3-07a & SCN 3-08a
Garnock Academy
4
A cyclist relies on friction and also tries to reduce friction.
a)
Mark two parts of the bicycle where friction is needed, and
describe why it is needed.
2
b)
Give two ways the cyclist can reduce friction so that he will go faster.
2
CfE Science Level 3: SCN 3-07a & SCN 3-08a
Garnock Academy