Intro to Forces

Intro to Forces
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Slide 1: Diapositive
ScienceLower Secondary (Key Stage 3)

Cette leçon contient 38 diapositives, avec quiz interactifs, diapositives de texte et 1 vidéo.

Éléments de cette leçon

Intro to Forces

Slide 1 - Diapositive

What do you already know about forces?

Slide 2 - Carte mentale

Slide 3 - Vidéo

Slide 4 - Diapositive

Types of Force
We split forces into two categories:

  • Contact
  • Non-contact

Slide 5 - Diapositive

A person rubs their hands together to warm them up. What is the name of the force?

Slide 6 - Question ouverte

Friction (Contact)
A backwards acting force caused by two objects rubbing together.

What would be another example of friction?

Slide 7 - Diapositive

A propeller helps to drive a boat forwards through the water. What is the name of the force?

Slide 8 - Question ouverte

Thrust (Contact)
A forwards acting force of one object pushing another.

What would be another example of thrust?

Slide 9 - Diapositive

A boat floats on the ocean. What is the name of the force that stops it from sinking?

Slide 10 - Question ouverte

Upthrust (Contact)
An upwards acting force of a gas or liquid on an object.

What would be another example of upthrust?

Slide 11 - Diapositive

A bullet fired underwater will quickly slow down. What is the name of the force?

Slide 12 - Question ouverte

Drag (Contact)
An upwards acting force of a gas or liquid on an object.

What would be another example of upthrust?

Slide 13 - Diapositive

Tension (Contact)
A force where 2 objects pull against each other.


Slide 14 - Diapositive

Weight/Gravity (Non-contact)
downwards acting caused by the pull of the planet.

What would be another example of weight?

Slide 15 - Diapositive

A paperclip is pulled towards a fridge magnet. What is the name of the force?

Slide 16 - Question ouverte

Magnetism (Non-contact)
The pull/push a magnet exerts on any magnetic object within its field.


Slide 17 - Diapositive

Thrust
A
Contact
B
Non-contact

Slide 18 - Quiz

Drag
A
Contact
B
Non-contact

Slide 19 - Quiz

Weight
A
Contact
B
Non-contact

Slide 20 - Quiz

Friction
A
Contact
B
Non-contact

Slide 21 - Quiz

Air resistance
A
Contact
B
Non-contact

Slide 22 - Quiz

Magnetism
A
Contact
B
Non-contact

Slide 23 - Quiz

Name 3 contact forces. Give an example of each force.

Slide 24 - Question ouverte

Match the force to the description.
Thrust
Weight
Drag
Tension
Friction
Upthrust

Slide 25 - Question de remorquage

Slide 26 - Diapositive

Which force is the biggest in this diagram?
A
Drag
B
Weight
C
Thrust

Slide 27 - Quiz

Which force is the biggest in this diagram?
A
Drag
B
Weight

Slide 28 - Quiz

Which force is the biggest in this diagram?
A
Thrust
B
Weight
C
Upthrust
D
Air resistance

Slide 29 - Quiz

Label the force diagram.
Weight
Friction
Drag
Thrust
Tension
Upthrust
Reaction force

Slide 30 - Question de remorquage

Label the force diagram.
Weight
Friction
Drag
Thrust
Tension
Upthrust
Reaction force

Slide 31 - Question de remorquage

Label the force diagram.
Weight
Friction
Drag
Thrust
Tension
Upthrust
Reaction force

Slide 32 - Question de remorquage

Label the force diagram.
Weight
Friction
Drag
Thrust
Tension
Upthrust
Reaction force

Slide 33 - Question de remorquage

What effects do forces have?

Slide 34 - Diapositive

Slide 35 - Diapositive

How can you tell each car is applying a force here?

Slide 36 - Question ouverte

How can you tell the dog is applying a force here?

Slide 37 - Question ouverte

What 3 effects can a force have on an object?

Slide 38 - Question ouverte