sim presentation lauri leigh

7/27/2019 Sim Presentation Lauri Leigh

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Covered Page 1

Least Mastered 2

Competency

Guide Card 3

Introduction 4

Introduction 5

Activity Card 1 6

Activity Card 2 7

Activity Card 3 8

Activity Card 4 9

Activity Card 5 10

Enrichment Card 1 16





Assessment Card 1 11



Assessment Card 4 14Assessment Card 5 15

Answer Card 16

Reference Card 17


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MAIN TASKState the Second Law of Motion, Law of Acceleration.


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Have you watched what happens to a pile of leaves on a windy day? A light breeze might gently scatter the leaves across the lawn, but a huge gust of wind

would send the leaves

whirling into the air. If the wind got stronger, the leaves would soar through the air even fasterand your bike might even tip over, too! Remember,

Newtons First Law tells us that an object will stay at rest or in motion unless a force changes it. In his second law, he explains how unbalanced forces cause

objects to accelerate,

or move faster. Newtons Second Law says that an objects acceleration depends on two things: force and mass. As the force exerted on an object increases,

the acceleration will increase. Thats why when the gentle breeze turns into a strong gust, the leaves move faster and farther. As the force of the wind

increases, theAcceleration of the moving leaves increases, too. The relationship between acceleration and mass is just the

opposite. The more mass something has, the less it will accelerate. Leaves are light and have very little mass, so they will accelerate quickly. Your bicycle, on

the other hand, has much more

mass than the leaves. The same gust of wind that blew the leaves into your neighbors yard might have scooted your parked bicycle only a few inches.

Below is a summary ofNewtons Second Law. Fill in the missing words to complete the sentences.

Then, complete the riddle below by finding the matching number and writing the letter.

Newtons Second Law

___ ___ ___ ___ ___ ___ ___ ___ ___ ___ forces cause an object to accelerate.

1 2 3 4 5 6 7 8 9 10

Acceleration depends on ___ ___ ___ ___ ___ and ___ ___ ___ ___ .

11 12 13 14 15 16 17 18 19

As the force increases, the ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___

increases, too. 20 21 22 23 24 25 26 27 28 29 30 31

Newtons Second Law


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1. An object with a mass of 11.78 kg experiences a force of 19.80 N. What is the acceleration of the object? A.233.24 m/s/sB.3.88 m/s/sC.1.68 m/s/s

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1. An object with a mass of 11.78 kg experiences a force of 19.80. What is the acceleration of the object?A. 233.24 m/s2 B. 3.88 m/s2 C. 1.68 m/s2

2. Calculate the acceleration of the car with a mass of25.69 kg thatexperiences a force of 29.22 N.

A. 0.88m/s2 B. 1.14 m/s2 C. 750.66 m/s2

3. An object is suggested with an acceleration of 2.87 m/s2 and a force of

23.33. What is its mass?

A. 8.13 m/s2 B. 3.12m/s2 C. 0.25 m/s2

Direction: Solve the following problems and circle the letter corresponding to its answer.


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1. School bus A and School bus B have 35 students each. School bus A runs 45 km/h, while school bus B runs 60

km/h. if they start at the same position, which school bus do you think will arrive in school first?

A.Bus A C. BothB. Bus B

1. Suppose School bus A has 20 students on board and school bus B has 45, and both buses run at 60 km/h. If

start at the same position, which bus will accelerate and therefore arrive in school the soonest?

A.Bus A C. BothB. Bus B


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3. What is the mass of an object if a force of 34 N produces an acceleration

of 4 m/s2?


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A 52-kg water-skier is

being pulled by a speedboat. The

force causes her to accelerate at 2

m/s2. Calculate the net force that

causes this acceleration.

What is the force on a 1,000-

kg elevator accelerating at

2m/s2?


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What three quantities are related

in Newtons second Law of

motion?

When the net force on an object

increases, how does the objects

acceleration change?

Suppose you doubled the force

acting on an object. In what waycould you change its mass to keep

its acceleration unchanged?


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1. According to Newtons Second Law of motion, force is equal

to mass times acceleration.

2. The net force of an object is greater than the product ofits acceleration and its mass.

3. One Newton equals the force required to accelerate onekilogram of mass at 1 meter per second square.

4. The acceleration happened in 500 kg andforce of 5N is 40 m/s2.

Write T if the statement is True and F if

False.


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A car whose mass (including the driver) is 1600 kg, has a maximum

acceleration of 1.2 m/s2. if three passengers, each has a mass of 80 kg are

also in the car, what is the acceleration?

A motorcycle and rider have a total mass of 400 kg. the rider sees a kitten in

front of his motorcycle and applies the brakes. What is the net force on the

motorcycle if it slow down at the rate of 5m/s2?


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sim presentation lauri leigh

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