Science at key stage 3 (Year 7)
Unit 7K: Forces and their effects
|
|
Objectives |
Section 1: Where do we come across forces?
Children should learn:
- about a range of forces
- how to measure forces
View related activities and outcomes
Section 2: a. Why do things float?
Children should learn:
- that when objects are immersed in water there is an upthrust on them
- to draw conclusions from experimental results
- that when objects float the upthrust is equal to their weight
- that density is mass divided by volume
View related activities and outcomes
Section 3: b. Why do things float?
Children should learn:
- to choose which measurements and observations to make
- to compare results with those of others in order to evaluate their work
- that upthrust is different in different liquids
View related activities and outcomes
Section 4: c. Why do things float?
Children should learn:
- that when an object is stationary the forces on it are balanced
- that the direction of a force can be represented by an arrow
View related activities and outcomes
Section 5: How do different materials stretch?
Children should learn:
- to draw an appropriate curve/line graph to fit quantitative data, including choosing the scales
- why it is important to repeat measurements
- to describe and compare trends shown in graphs
- to make predictions from a graph
- to use a graph to identify anomalous data
View related activities and outcomes
Section 6: Checking progress
Children should learn:
- that there are many situations in which forces are balanced
- how to represent balanced forces with arrows
View related activities and outcomes
Section 7: What is weight?
Children should learn:
- that mass is the amount of matter in an object and is measured in kilograms
- that weight is a force and is measured in newtons
- that weight is caused by gravity acting on a mass
View related activities and outcomes
Section 8: a. What does friction do?
Children should learn:
- that friction is a force which opposes motion
- how friction between two surfaces can be reduced with a lubricant
View related activities and outcomes
Section 9: b. What does friction do?
Children should learn:
- about factors affecting frictional forces
- to investigate one variable while keeping others constant
- to represent quantitative data in a graph
- to make predictions from a graph
View related activities and outcomes
Section 10: c. What does friction do?
Children should learn:
- that frictional forces can be useful
- to identify the main points of a talk
View related activities and outcomes
Section 11: What affects how quickly a car stops?
Children should learn:
- that stopping distances of vehicles relate to frictional forces and speed
- about speed and the units in which it is measured
- how to interpret distance/time graphs qualitatively
View related activities and outcomes
Section 12: Reviewing work
Children should learn:
- to recognise useful and unhelpful frictional forces
- to bring together ideas about forces and motion and to make links between them
View related activities and outcomes
|
Sections in this unit |
|
This unit is divided into sections. Each section contains a sequence of
activities with related objectives and outcomes. You can view this unit by
moving through the sections or print/download the whole unit.
|
|
|
