Year 7 Science: Forces

Magnet and Compass

Click to Run



Interactive Learning Object from PheT, Colorado

Learning Intention: Students will understand that forces can start motion, stop motion, change the speed or direction of motion, change the shape of an object or have no effect at all. They will be able to distinguish between contact forces (friction, buoyancy, surface tension, mechanical forces) and non-contact forces (magnetic and electric forces).

Success Criteria: Students will create a 60 second science video that demonstrates their understanding of forces.

This term Year 7 students will continue learning about forces, using simple experiments with magnets, water, weights and wires. We will also use some online and netbook tools to learn about forces. Click on the interactive above to enter the learning object. Read more about the magnetic field of the earth at BBC Bitesize: Magnetic Fields.  Do-it-Yourself magnetic levitation at You Tube. Everything you ever want to know about magnets from the Cool Magnet Man. 

Your task this week is to produce a 60-second science video that demonstrates your understanding of forces – choose one of the forces we have discussed (magnetic, friction, static-electric, buoyancy, surface-tension, gravity, muscular and mechanical forces). Create a story board and a script before you borrow the cameras and start filming and editing. You will need to register on the site using a username and password before you upload your video.

Forces in Action


Image Source

Learning Intention: Understand the motion of objects in terms of  gravity, magnetic and electrostatic forces, bouyancy, friction and surface tension.

Success Criteria: You will be able to describe how things move using simple combinations of forces. For example, “A boat floats because the bouyancy forces are greater than the forces of gravity”.

Year 7 students have started a unit of work about how forces can:

  • Start motion
  • Stop motion
  • Change the speed
  • Change the direction
  • Change the shape of objects or
  • have no effect at all. 

Your task is to produce a concept map using,  showing contact and non-contact forces, including pictures as examples of each force. I have used “Arthur’s Clip Art” to get some free images to illustrate each of the forces. You could also use “Fotopedia” or “Creative Commons Search” to find images free from copyright restrictions.