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Understand that drag force acts on objects moving through gases, such as air resistance.

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Cambridge IGCSE Combined ScienceMotion, forces and energyCore content

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Understand that drag force acts on objects moving through gases, such as air resistance

This point belongs to Forces, especially Forces outcomes.
You need to be able to understand that drag force acts on objects moving through gases, such as air resistance.
The key ideas to know are State, Identify, and Explain.
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Key concepts

StateIdentifyExplain

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Paper 3 structured question: Forces

Paper 3Theory (Core)2 marks

Description

Drag Force and Motion

When a car moves through the air, it experiences a drag force that opposes its motion. This force is influenced by the car's speed, shape, and the density of the air.

a
Explain how drag force affects the speed of a car moving through air.
Your answer
Aim for approximately 2 distinct marking points.
[2]

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Related learning objectives

Understand that forces can cause changes in an object's size, shape, and motion.
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Calculate the overall effect of two or more forces acting in the same direction.
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Explain friction as the force that occurs between two surfaces, which can hinder movement and generate heat.
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Recognize that drag force acts on objects moving through liquids.
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Know that an object will stay at rest or move in a straight line at a constant speed unless acted upon by a resultant force.
Forces outcomes

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