Forces - 5.7.1 Momentum is a Property of Moving Objects (GCSE Physics AQA)

Momentum is a Property of Moving Objects

Momentum

Calculating Momentum

The momentum of an object is a measure of how hard it is to stop. It depends on two factors:

  1. Mass – the heavier an object, the harder it is to stop.
  2. Velocity – the faster an object is moving, the harder it is to stop.

We can calculate momentum using the following equation:

Where:

  • momentum, p, in kilograms metre per second, kg m/s
  • mass, m, in kilograms, kg
  • velocity, v, in metres per second, m/s

Question: Calculate the momentum of an 8kg object travelling at a speed of 2 m/s.

1. Write out the equation.

p = mv

2. Substitute in the numbers.

p = 8 x 2
p = 16 kg m/s

Still got a question? Leave a comment

Leave a comment

Post as “Anonymous”

AQA 1 Energy

Energy – 1.3 National and Global Energy Resources (GCSE Physics AQA)

Energy – 1.2.2 Efficiency (GCSE Physics AQA)

Energy – 1.2.1 Energy Transfers in a System (GCSE Physics AQA)

Energy – 1.1.4 Power (GCSE Physics AQA)

Energy – 1.1.3 Changes in Energy (GCSE Physics AQA)

Energy – 1.1.2 Changes in Energy (GCSE Physics AQA)

Energy – 1.1.1 Energy Stores and Systems (GCSE Physics AQA)

AQA 2 Electricity

Electricity – 2.5.2 Electric Fields (GCSE Physics AQA)

Electricity – 2.5.1 Static Charge (GCSE Physics AQA)

Electricity – 2.4.3 The National Grid (GCSE Physics AQA)

Electricity – 2.4.2 Energy Transfers in Everyday Appliances (GCSE Physics AQA)

Electricity – 2.4.1 Power (GCSE Physics AQA)

Electricity – 2.3.2 Mains Electricity (GCSE Physics AQA)

Electricity – 2.3.1 Direct and Alternating Potential Difference (GCSE Physics AQA)

Electricity – 2.2.2 Series and Parallel Circuits (GCSE Physics AQA)

Electricity – 2.1.4 Resistors (GCSE Physics AQA)

Electricity – 2.2.3 Current, Resistance and Potential Difference (GCSE Physics AQA)

AQA 3 Particle model of matter

Practice Model of Water – 3.3.3 Increasing the Pressure of a Gas (Physics Only) HT only (GCSE Physics AQA)

Practice Model of Water – 3.3.2 Pressure in Gases (Physics Only) (GCSE Physics AQA)

Practice Model of Water – 3.3.1 Particle Motion in Gases (GCSE Physics AQA)

Practice Model of Water – 3.2.3 Changes of Heat and Specific Latent Heat (GCSE Physics AQA)

Practice Model of Water – 3.2.2 Temperature Changes in a System and Specific Heat Capacity (GCSE Physics AQA)

Practice Model of Water – 3.2.1 Internal Energy (GCSE Physics AQA)

Practice Model of Water – 3.1.1 Density of Materials (GCSE Physics AQA)

Practice Model of Water – 3.1.2 Changes of State (GCSE Physics AQA)

AQA 4 Atomic structure

Atomic Structure – 4.4.2 Nuclear Fusion (GCSE Physics AQA)

Atomic Structure – 4.4.1 Nuclear Fission (GCSE Physics AQA)

Atomic Structure – 4.3.2 Different Half-Lives of Radioactive Isotopes (GCSE Physics AQA)

Atomic Structure – 4.3.3 Uses of Nuclear Radiation (GCSE Physics AQA)

Atomic Structure – 4.3.1 Background Radiation (GCSE Physics AQA)

Atomic Structure – 4.2.4 Radioactive Contamination (GCSE Physics AQA)

Atomic Structure – 4.2.3 Half-Lives and the Random Nature of Radioactive Decay (GCSE Physics AQA)

Atomic Structure – 4.2.2 Nuclear Equations (GCSE Physics AQA)

Atomic Structure – 4.2.1 Radioactive Decay and Nuclear Radiation (GCSE Physics AQA)

Atomic Structure – 4.1.3 The Development of the Model of the Atom (common content with Chemistry) (GCSE Physics AQA)

AQA 5 Forces

Forces – 5.7.3 Changes in Momentum (Physics Only) (GCSE Physics AQA)

Forces – 5.7.2 Conservation of Momentum (GCSE Physics AQA)

Forces – 5.6.3.3 Factors Affecting Braking Distance 1 (GCSE Physics AQA)

Forces – 5.7.1 Momentum is a Property of Moving Objects (GCSE Physics AQA)

Forces – 5.6.3.4 Factors Affecting Braking Distance 2 (GCSE Physics AQA)

Forces – 5.6.3.2 Reaction Time (GCSE Physics AQA)

Forces – 5.6.3.1 Stopping Distance (GCSE Physics AQA)

Forces – 5.6.2.3 Newton’s Third Law (GCSE Physics AQA)

Forces – 5.6.2.2 Newton’s Second Law (GCSE Physics AQA)

Forces – 5.6.2.1 Newton’s First Law (GCSE Physics AQA)

AQA 6 Waves

Waves – 6.3.2 Perfect Black Bodies and Radiation (GCSE Physics AQA)

Waves – 6.3.1 Emission and Absorption of Infrared Radiation (GCSE Physics AQA)

Waves – 6.2.6 Visible Light (Physics Only) (GCSE Physics AQA)

Waves – 6.2.5 Lenses (Physics Only) (GCSE Physics AQA)

Waves – 6.2.4 Uses and Applications of Electromagnetic Wave 2 (GCSE Physics AQA)

Waves – 6.2.3 Properties of Electromagnetic Waves 2 (GCSE Physics AQA)

Waves – 6.2.2 Properties of Electromagnetic Waves 1 (GCSE Physics AQA)

Waves – 6.2.1 Types of Electromagnetic Waves (GCSE Physics AQA)

Waves – 6.1.5 Waves For Detection and Exploration (Physics Only) (HT Only) (GCSE Physics AQA)

Waves – 6.1.4 Sound Waves (Physics Only) (HT Only) (GCSE Physics AQA)

AQA 7 Magnetism and electromagnetism

Magnetism & Electromagnetism – 7.3.4 Transformers (HT Only) (GCSE Physics AQA)

Magnetism & Electromagnetism – 7.3.3 Microphones (HT Only) (GCSE Physics AQA)

Magnetism & Electromagnetism – 7.3.2 Uses of the Generator Effect (HT Only) (GCSE Physics AQA)

Magnetism & Electromagnetism – 7.3.1 Induced Potential (HT Only) (GCSE Physics AQA)

Magnetism & Electromagnetism – 7.2.4 Loudspeakers (Physics Only) (HT Only) (GCSE Physics AQA)

Magnetism & Electromagnetism – 7.2.3 Electric Motors (HT Only) (GCSE Physics AQA)

Magnetism & Electromagnetism – 7.2.2 Fleming’s Left Hand Rule (HT only) (GCSE Physics AQA)

Magnetism & Electromagnetism – 7.2.1 Electromagnetism (GCSE Physics AQA)

Magnetism & Electromagnetism – 7.1.2 Magnetic Fields (GCSE Physics AQA)

Magnetism & Electromagnetism – 7.1.1 Poles of a Magnet (GCSE Physics AQA)

AQA 8 Space physics

The Solar System – 8.2 Red-Shift (Physics Only) (GCSE Physics AQA)

The Solar System – 8.1.3 Orbital Motion, Natural and Artificial Satellites (GCSE Physics AQA)

The Solar System – 8.1.2 The Life Cycle of A Star (GCSE Physics AQA)

The Solar System – 8.1.1 Our Solar System (GCSE Physics AQA)

Related links

Boost Your GCSE Physics Performance

GCSE Physics Tutors

Get a 9 in GCSE Physics with our Trusted 1-1 Tutors. Enquire now.
GCSE Physics Online Course

100+ Video Tutorials, Flashcards and Weekly Seminars. 100% Money Back Guarantee
Physics Summer School

Gain hands-on experience of how physics is used in different fields. Boost your university application with our summer programme!
GCSE Physics Weekly Classes

Learn live with other students and gain expert tips and advice to boost your score.