4.5.6.6 Law

Spec reference: 4.5.6 (subtopic).

What you need to know

• Forces and Elasticity
• When work is done on an elastic object,
• such as a spring, the energy is stored as
• elastic potential energy.
• When the force is applied, the
• object changes shape and stretches.
• The energy is stored as elastic
• potential and when the force is no

Self-assessment (checklist)

• I can state Newton’s First Law.
• I can describe the relationship between the resistive
• I can apply Newton’s First Law to explain the motion of
• I can apply Newton’s First Law to explain the motion of

Key steps (method)

• Identify what the question is testing and use the correct equation/definition.
• Show substitutions and units clearly.

Common mistakes

• Unit conversions, rearranging errors, or quoting a law without applying it.