# 5-10 Preparation for the test

Summary of chapter 5 for the test
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Slide 1: Tekstslide
NatuurkundeMiddelbare schoolvwoLeerjaar 3

In deze les zitten 32 slides, met interactieve quizzen en tekstslides.

Lesduur is: 50 min

## Onderdelen in deze les

Summary of chapter 5 for the test

#### Slide 1 -Tekstslide

What you need to know from 5.1
• From the velocity-time graph:

- Draw it
- use it to calculate distance en acceleration
• (a,t)- and (s,t)-diagram... explain and use it

• Formula of acceleration (Also if acceleration is not uniform)
- Use it to calculate acceleration
- Use it to calculate velocity

Convert from
km/h to m/s

#### Slide 2 -Tekstslide

In which of the two cases is the distance covered the greatest? Give a reason for your answer.

#### Slide 3 -Tekstslide

In which of the two cases is the distance covered the greatest? Give a reason for your answer.
A
Left
B
Right

#### Slide 5 -Tekstslide

timer
3:00
Brain accelerates uniformly from rest untill he reaches a velocity of 60 km/h. After maintaining this velocity for a while he floors the gaspedal. At a velocity of 120 km/h he needs to make an emergency stop. Draw a velocity time graph for the motion.

#### Slide 7 -Open vraag

Emergency stop

#### Slide 8 -Tekstslide

Determine the distance covered in the following diagrams.
timer
3:00

#### Slide 11 -Tekstslide

What must you know from 5.2
• Calculate the resultant force
• Explain the effects a resultant force has on an object i.t.o
- acceleration
- velocity
- position
• Use Newtons 3rd law
Especially be able to calculate the reslutant force with F = ma

#### Slide 12 -Tekstslide

What must you know of 5.3
• What is inertia and how does it influence motion.
• The second law of motion of Newton ... F = ma
- Make calculations with the formula
- Use the concept of resultant force
- If you have calculated F then calculate acceleration
- Explain how a change in Fres changes the acceleration

#### Slide 13 -Tekstslide

Calculate the acceleration
50 N
35 N
670 kg
friction = 45 N
timer
4:00

#### Slide 15 -Open vraag

A resultant force of 26N works on an object. Due to this the object accelerates at 0,24 m/s2. Calculate the mass of this object.
timer
3:30

Given:

Solution:

#### Slide 22 -Tekstslide

and from 5.4 you must know
• What is uniform acceleration and deceleration
• Know when to use a negative for acceleration
• Stopping distance = reaction distance + braking distance

#### Slide 23 -Tekstslide

A cyclist cycles at 15 m/s when he brakes with an acceleration of -4 m/s2. Calculate how long it takes untill his velocity has decreased by 3 m/s.
timer
4:00

Given:

Solution:

#### Slide 26 -Tekstslide

Calculate the acceleration:

#### Slide 30 -Tekstslide

Good luck with studying, and if you still have questions let me know.