What are forces?

In this lesson, we will learn what forces are. We will also learn about contact forces and non-contact forces. Finally, we will test our knowledge with some application questions.

What are forces?

In this lesson, we will learn what forces are. We will also learn about contact forces and non-contact forces. Finally, we will test our knowledge with some application questions.

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Lesson details

Key learning points

  1. Define a force
  2. Describe the effect forces can have on an object
  3. Name the forces acting on a range of objects

Licence

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4 Questions

Q1.
Which of these is NOT an example of a non-contact force?
Gravitational force.
Magnetic force.
Correct answer: Water resistance.
Q2.
What is the correct definition of water resistance?
A force that pushes upwards on objects that are in water.
Correct answer: A type of friction between water and a material.
Q3.
Which of these is NOT a practical use for magnets discussed in our lesson?
Magnets are placed in stomachs of cows to catch metals.
Magnets are used for televisions, microwaves and computers.
Correct answer: Magnets are used to store data in computers.
Magnets keep our refrigerator door shut.
Q4.
What would it feel like if two different sides of a magnet are brought together?
It would feel no different than bringing together two other objects.
Correct answer: They would attract each other.
They would repel each other.

Lesson appears in

UnitScience / Forces

Science