# BF and UF 2

Forces and Motion
Lesson 01. Forces
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Slide 1: Tekstslide
PhysicsSecondary EducationAge 13

In deze les zitten 29 slides, met interactieve quizzen en tekstslides.

## Onderdelen in deze les

Forces and Motion
Lesson 01. Forces

#### Slide 1 -Tekstslide

How are you today?
๐๐๐๐๐

#### Slide 2 -Poll

Highlights of the Day
• describe the effects of balanced and unbalanced forces on motion

• Value :  Responsibility

#### Slide 3 -Tekstslide

Forces and Motion
Lesson 01. Forces

#### Slide 4 -Tekstslide

What is a "force"?

QUESTION TIME!

#### Slide 6 -Tekstslide

Forces and Motion
Lesson 01. Forces

#### Slide 7 -Tekstslide

Can you see the forces acting on an object?
YES
NO

#### Slide 8 -Poll

Can you see the EFFECTS of forces acting on an object?
YES
NO

#### Slide 9 -Poll

If you cannot see force,
how can you show it in a diagram?

Using an arrow
tail
}
length

#### Slide 11 -Tekstslide

Forces have magnitude and direction.

stronger
weaker

#### Slide 13 -Sleepvraag

The ball is at rest or not moving. What forces are acting on the ball?

#### Slide 14 -Tekstslide

Forces acting on the ball
weight by gravity

#### Slide 15 -Tekstslide

Forces acting on the ball
weight by gravity
normal force

#### Slide 16 -Tekstslide

If mass has a unit of grams, which of the following is the unit of force?
A
kilograms (kg)
B
newtons (N)
C
meters (m)

#### Slide 17 -Quizvraag

Positive and Negative Directions
Positive Directions
Negative Directions
Forward
North
Backward
South
right
left
down
up

#### Slide 18 -Tekstslide

What type of direction is "rightward"?
A
negative
B
positive
C
meters (m)

Unit of FORCE
newtons  or  N

#### Slide 20 -Tekstslide

Forces acting on the ball
weight by gravity
normal force

#### Slide 21 -Tekstslide

Example 1:
normal force
positive 10 newtons ( + 10 N)
upward is POSITIVE

#### Slide 22 -Tekstslide

Example 2:
weight by gravity
negative 10 newtons ( - 10 N)
downward is NEGATIVE

#### Slide 23 -Tekstslide

Forces acting on the ball
weight by gravity
normal force
+5 newtons
-5 newtons

#### Slide 24 -Tekstslide

Force Diagram
weight by gravity
normal force
+5 newtons
-5 newtons
wind
wind

#### Slide 25 -Tekstslide

How will you make the ball move?
-3 newtons
+3 newtons
force 1
force 2

#### Slide 26 -Tekstslide

Balanced forces are two or more forces acting on an object that are ______ in size and _______ in direction.
A
unequal ; opposite
B
equal ; opposite
C
unequal ; similar
D
equal ; similar

#### Slide 27 -Quizvraag

Forces and Motion
ACTIVITY 27.1. Diagram Me!

#### Slide 28 -Tekstslide

Rate your level of understanding and participation in this lesson.
15