Subject:
Science
Faculty:
Science and Technology
Topic:
Forces and Gravity
Term:
Year 7, Term 3
Year 7
Steps 1
Old KS2
Equivalent
KS2 SAS
CAT4 SAS
Knowledge and Understanding
Impressive understanding of:

How Gravitational force varies with mass and
distance

How planets and moons stay in orbit

How an object will behave if the resultant force
is zero
How a non-zero resultant force will affect an
object


The proportional relationship between the force
applied and the change seen for some materials
Skills and Application
Skilfully, and with flair, able to:

Compare your weight on Earth with your weight on different
planets using the formula.

Deduce how gravity varies for different masses and
distances.

Draw a force diagram for a problem involving gravity.

Explain unfamiliar observations where weight changes.

Describe factors which affect the size of frictional and drag
forces.

Describe how materials behave as they are stretched or
squashed.
Explain whether an object in an unfamiliar situation is in
equilibrium.

9
Platinum
6c/6b/6a
120+
120+
Excellent understanding of:

How Gravitational force varies with mass and
distance
8
Yellow

How planets and moons stay in orbit

How an object will behave if the resultant force
is zero
How a non-zero resultant force will affect an
object


5b/5a
4a/5c
7
Yellow
110-119
106-119
The proportional relationship between the force
applied and the change seen for some materials
Precisely able to:

Compare your weight on Earth with your weight on different
planets using the formula.
Working Scientifically
Skilfully, and with flair, able to:

Draw conclusions from data about orbits, based on how gravity
varies with mass and distance.

Suggest implications of how gravity varies for a space mission.

Using force and extension data, compare the behaviour of
different materials in deformation using the idea of
proportionality.

Decide the type of chart or graph to draw based on its purpose or
type of data.

Design a table for the data being gathered.

Label the x axis with the name of the independent variable and the
y axis with the dependent variable.

Write unit labels on the axes.

Decide which numbers to start and finish with on each axis.

Mark out an equal scale showing what each square of graph paper
represents.


Draw a straight line or a curve of best fit through the points.
Justify whether anomalous results can be explained or ignored.

Suggest other possible conclusions that could be drawn from your
data.

Quote any secondary data you have which led to the same
conclusion.
Precisely able to:

Draw conclusions from data about orbits, based on how gravity
varies with mass and distance.

Deduce how gravity varies for different masses and
distances.

Decide the type of chart or graph to draw based on its purpose or
type of data.

Draw a force diagram for a problem involving gravity.

Design a table for the data being gathered.

Describe factors which affect the size of frictional and drag
forces.


Label the x axis with the name of the independent variable and the
y axis with the dependent variable.
Describe how materials behave as they are stretched or
squashed.
Evaluate how well sports or vehicle technology reduces
frictional or drag forces.

Write unit labels on the axes.

Decide which numbers to start and finish with on each axis.

Mark out an equal scale showing what each square of graph paper
represents.


Draw a straight line or a curve of best fit through the points.
Comment on whether there is a real difference between data.

Justify whether anomalous results can be explained or ignored.

Suggest other possible conclusions that could be drawn from your
data.


Describe the effects of drag and other forces on falling or
accelerating objects as they move.
Secure understanding of:

How Gravitational force varies with mass and
distance
6
Blue

How planets and moons stay in orbit

How an object will behave if the resultant force
is zero
How a non-zero resultant force will affect an
object

4b/4c
100-109
Securely able to:

Compare your weight on Earth with your weight on different
planets using the formula.

Use the formula: weight (N) = mass (kg) x gravitational field
strength (N/kg).

Deduce how gravity varies for different masses and
distances.

Sketch the forces acting on an object, and label their size
and direction.
96-105
5
Blue

Describe factors which affect the size of frictional and drag
forces.

Describe how materials behave as they are stretched or
squashed.
Describe the effects of drag and other forces on falling or
accelerating objects as they move.

Developed understanding of:

Gravitational force between objects
4
Green


3b/3a
90-99
The key terms Weight, non-contact force, mass,
gravitational field strength and field
How an object will behave if the resultant force
is zero
Competently Able to:

Compare your weight on Earth with your weight on different
planets using the formula.

Sketch the forces acting on an object, and label their size
and direction.

Use the formula: weight (N) = mass (kg) x gravitational field
strength (N/kg).
80-95
3
Green
Basic understanding of:

The relationship between mass and weight
2
Orange


2c/2b/2a/3c
1
Orange
80-89
<80
The key terms Weight, non-contact force, mass,
gravitational field strength and field
How an object will behave if the resultant force
is zero
With some support able to:

Compare your weight on Earth with your weight on different
planets using the formula.

Sketch the forces acting on an object, and label their size
and direction.
Securely able to:

Draw conclusions from data about orbits, based on how gravity
varies with mass and distance.

Decide the type of chart or graph to draw based on its purpose or
type of data.

Design a table for the data being gathered.

Label the x axis with the name of the independent variable and the
y axis with the dependent variable.

Write unit labels on the axes.

Decide which numbers to start and finish with on each axis.

Mark out an equal scale showing what each square of graph paper
represents.


Draw a straight line or a curve of best fit through the points.
Suggest a scientific reason for your findings.

Comment on whether there is a real difference between data.

Justify whether anomalous results can be explained or ignored.
Competently Able to:

Compare and contrast gravity with other forces.

Decide the type of chart or graph to draw based on its purpose or
type of data.

Design a table for the data being gathered.

Label the x axis with the name of the independent variable and the
y axis with the dependent variable.

Write unit labels on the axes.

Decide which numbers to start and finish with on each axis.


Mark out an equal scale showing what each square of graph paper
represents.
Incorporate the pattern you found into an answer to the enquiry
question.

Suggest a scientific reason for your findings.
With some support able to:

Compare and contrast gravity with other forces.

Decide the type of chart or graph to draw based on its purpose or
type of data.

Design a table for the data being gathered.

Label the x axis with the name of the independent variable and the
y axis with the dependent variable.

Write unit labels on the axes.

Incorporate the pattern you found into an answer to the enquiry
question.

Suggest a scientific reason for your findings.