Energy and Forces
Forces near and Far
⦁ List four actions that are a pushing force and four that are a pulling force.
State whether they require contact or act from a distance.
Push Contact or non-contact force?
Pull Contact or non-contact force?

⦁ Look at these pictures.
⦁ Which ball will travel further? Slingshot 1 Slingshot 2
⦁ Which ball will move slower? Slingshot 1 Slingshot 2
⦁ Label one of the slingshot images with the types of forces in action, and draw
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arrows to show the direction of the forces.
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⦁ (a) Name one way to increase friction.
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(b) Draw a force diagram to show your answer for (a).

 

 

⦁ Name three forces that can move an object without directly touching it.
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⦁ (a) Describe the two forces faced by a parachutist jumping out of a plane.
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(b) Will a golf ball or a ping pong ball hit the ground first if dropped from the same height? Why?
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⦁ Draw one example of magnetic force and one example of static electricity.
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Use arrows to show the direction of the force.
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Energy and Forces
Forces near and Far
Project Brief
Alien Forces
The problem
Film special effects have come a long way since black and white films! UFOs no longer need
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to be dangled from a wire and moved across a camera. How can you use what you have
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learnt about invisible forces and constant forces to make a short video of a UFO?
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The task
⦁ You need to create a scene for a film that shows a UFO moving across a skyscape.
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You will need to make a UFO, and a hover base for the UFO to move across. You will
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also design and create a skyscape background to add to the hover base. You will then
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need to film the moving UFO and create a short film scene.
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Things to consider
⦁ You must work in groups of 2-3 pupils.
⦁ You must make a simple UFO with a weight that can be supported by a non-contact
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force.
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⦁ The UFO must move left or right across a hover base contained within a cardboard
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box.
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⦁ The UFO must travel a distance of at least one metre so your hover base should be at
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least that long.
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⦁ You need to create a skyscrape prop to add along one side of the hover base.
⦁ You will need to film a video of the UFO flying across the skyscrape and add some sound effects.
⦁ The video should be approximately one minute.
Project Steps
Investigate
⦁ Revise contact and non-contact forces. Which force can make an object appear to
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hover? Which force can move a hovering object left or right?
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⦁ Look at videos of how to make objects that appear to levitate, with the use of a force.
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⦁ Research different skyscrapes and how to make them into a prop.
⦁ Research different UFO designs and which materials are best to make a UFO a
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suitable weight.
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Design, plan and manage
⦁ Draw a diagram of your UFO design and label the materials, including those required
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to make it hover.
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⦁ Draw a diagram of the hover base design and label the materials and measurements.
⦁ Select a skyscrape and draw a sketch of how it will look.
⦁ Allocate roles to your team members and collect materials required.
Make
⦁ Create your UFO, hover base and skyscape prop.
Evaluate and refine
⦁ Test your UFO to see if it hovers and can be moved left or right across the hover base.
⦁ Check that your design meets all the criteria.
⦁ Change the UFO, hover base or skyscrape if needed.
Communicate
⦁ Film a video of the UFO in action and add sound effects using an application like imovie or Windows Movie Maker.
⦁ Share your video with your class or upload it to your school website.