# Forces in Everyday Life

In this worksheet, students will answer questions in relation to common forces in everyday life.

Key stage:  KS 3

Curriculum topic:   Physics: Motion and Forces

Curriculum subtopic:   Forces

Difficulty level:

### QUESTION 1 of 10

Forces are all around us; they change the shape of things, their speed or even the direction they are moving in.

Contact forces only occur when two or more objects are touching. An example is when we throw a ball; we have to touch it before we throw it. Non-contact forces affect objects from a distance. An example is a magnet which can pull objects towards it from far away! Other non-contact forces are gravity and static electricity.

There can be many forces acting on an object at the same time. We use arrows to show forces. Take a look at the forces acting on the swimmer in the diagram below.

Drag pulls the person backwards, as it is actually water resistance.  Thrust is the forward force the swimmer produces with his/her body, whilst swimming.  Weight is the force of gravity pulling him/her downwards and buoyancy is the reaction force from the water (also called upthrust).

You'll have looked at forces in KS2 so, with the information above and your previous knowledge, this activity should help to consolidate your understanding.

Where can we find forces?

when we swim

when we fly

They are all around us.

It this statement true or false?

Contact forces can affect objects from far away.

true

false

It this statement true or false?

An example of a contact force is gravity.

true

false

It this statement true or false?

A fish swimming in water is not affected by gravity.

true

false

It this statement true or false?

Upthrust is another name for buoyancy.

true

false

A fish swimming in the sea produces a forward force with its body which helps it to move forward. What is the name of this force?

Give another name for water resistance.

The diagram shows the forces acting on an aeroplane while it is flying. Think of another name for drag.

water resistance

air resistance

upthrust

The diagram shows forces acting on a car while it is moving. Which one of these forces represents the friction between the tyres and the road surface?

It this statement true or false?

Friction is an example of a non-contact force.

true

false

• Question 1

Where can we find forces?

They are all around us.
EDDIE SAYS
Forces are all around us.
• Question 2

It this statement true or false?

Contact forces can affect objects from far away.

false
EDDIE SAYS
Contact forces affect objects only when they are touching.
• Question 3

It this statement true or false?

An example of a contact force is gravity.

false
EDDIE SAYS
Gravity is a non-contact force.
• Question 4

It this statement true or false?

A fish swimming in water is not affected by gravity.

false
EDDIE SAYS
Gravity affects objects in water, too.
• Question 5

It this statement true or false?

Upthrust is another name for buoyancy.

true
EDDIE SAYS
Upthrust is another name for buoyancy. The statement is true.
• Question 6

A fish swimming in the sea produces a forward force with its body which helps it to move forward. What is the name of this force?

thrust
EDDIE SAYS
A fish swimming in the sea produces a forward force with its body which helps it to move forward. It is called thrust.
• Question 7

Give another name for water resistance.

drag
EDDIE SAYS
Another name for water resistance is drag.
• Question 8

The diagram shows the forces acting on an aeroplane while it is flying. Think of another name for drag.

air resistance
EDDIE SAYS
Drag in the air is air resistance.
• Question 9

The diagram shows forces acting on a car while it is moving. Which one of these forces represents the friction between the tyres and the road surface?

drag
EDDIE SAYS
Another name for drag acting on a car is friction. The friction between the tyres and the road surface is what slows down the car.
• Question 10

It this statement true or false?

Friction is an example of a non-contact force.

false
EDDIE SAYS
Objects must be touching for friction to act, so friction is a contact force. The statement is false.
---- OR ----

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