Exploring Balanced Forces and Force Pairs

• newEditor
• Physics
• Lower Secondary (Key Stage 3)

Balanced Forces and Force Pairs

week 2 term 2

CHROMOBOOKS OUT and DATE AND TITLE IN BOOKS

which of these is not a contact force ?

Text

Text

A

thrust

B

friction

C

drag

D

gravitational

what is friction?

what forces are acting on this ball ?

A

gravity, drag, thrust

B

magnetism , upthrust, gravity

C

gravity, weight, friction

D

upthrust, drag, thrust

two effects a force can have on a object?

A

speed and direction

B

speed and shape

C

direction and weight

D

shape and weight

which was does gravity act ?

A B C D

A

A

B

B

C

C

D

D

Interactions Pairs

Example: Book on a Table

A book resting on a table experiences balanced forces: gravity pulls it down, and the table pushes it up.

Interactive: Force Diagram

Draw and label the forces acting on a stationary object. Identify whether they are balanced.

Newton's Third Law

For every action, there is an equal and opposite reaction. Forces always come in pairs.

Example: Walking

When you walk, your foot pushes backward on the ground, and the ground pushes forward on your foot.

Interactive: Identify Force Pairs

List everyday activities and identify the action-reaction force pairs involved.

Balanced Forces in Sports

In tug-of-war, balanced forces occur when neither team moves, indicating equal force exerted by both sides.

Quiz: True or False

Balanced forces can cause changes in the motion of an object. True or False?

Force Pairs in Nature

Birds fly by pushing air down with their wings, while air pushes them up, demonstrating force pairs.

Interactive: Force Pair Challenge

In pairs, create a short skit showing a force pair in action. Present to the class.

Review: Key Concepts

Recap balanced forces, force pairs, and their examples. Ensure all questions are addressed.

Exit Ticket

Write one example of a balanced force and one example of a force pair you observed today.

Homework Assignment

Observe and note three examples of balanced forces and force pairs in your everyday life.

Write down 3 things you learned in this lesson.

Write down 2 things you want to know more about.

Ask 1 question about something you haven't quite understood yet.