PRESSURE on SOLID

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Pressure is a magnitude of a force which exerts on a body per area unit of a pressing plane.Pressure consist of : Pressure on Solid

Pressure on LiquidPressure on Gas

Pressure

Do you know that :Pressure of a high heels

Pressure of an elephant=I KNOW IT’S

AN ELEPHANT

Formula of pressure :

Where : p = Pressure F = ForceA = A pressing

plane surface area

FORMULA

Unit of pressure is N/m2

Example Problem Pressure on Solid1. A box which has weight 500 N and base

area 1 m2 puts on the floor. Calculate the pressure that is given by the box to the floor.

2. Which block that have the biggest pressure? Block A that have weight 9 kg and base area 3 m2, or block B that have weight 3 kg and have base area 1 m2

3. Amir puts a wooden block with pad that touch floor with size 20 cm x 80 cm. If the pressure of that wooden block to the floor is 2,000 N/m2, calculate the force of the wooden block.

CHECK ANSWER

CHECK ANSWER

CHECK ANSWEREXIT

Example Problem Pressure on Solid1. A box which has weight 500 N and base

area 1 m2 puts on the floor. Calculate the pressure that is given by the box to the floor.

2. Which block that have the biggest pressure? Block A that have weight 9 kg and base area 3 m2, or block B that have weight 3 kg and have base area 1 m2

3. Amir puts a wooden block with pad that touch floor with size 20 cm x 80 cm. If the pressure of that wooden block to the floor is 2,000 N/m2, calculate the force of the wooden block.

CHECK AGAIN

CHECK ANSWER

CHECK ANSWEREXIT

Example Problem Pressure on Solid1. A box which has weight 500 N and base

area 1 m2 puts on the floor. Calculate the pressure that is given by the box to the floor.

2. Which block that have the biggest pressure? Block A that have weight 9 kg and base area 3 m2, or block B that have weight 3 kg and have base area 1 m2

3. Amir puts a wooden block with pad that touch floor with size 20 cm x 80 cm. If the pressure of that wooden block to the floor is 2,000 N/m2, calculate the force of the wooden block.

CHECK ANSWER

CHECK AGAIN

CHECK ANSWEREXIT

Example Problem Pressure on Solid1. A box which has weight 500 N and base

area 1 m2 puts on the floor. Calculate the pressure that is given by the box to the floor.

2. Which block that have the biggest pressure? Block A that have weight 9 kg and base area 3 m2, or block B that have weight 3 kg and have base area 1 m2

3. Amir puts a wooden block with pad that touch floor with size 20 cm x 80 cm. If the pressure of that wooden block to the floor is 2,000 N/m2, calculate the force of the wooden block.

CHECK ANSWER

CHECK ANSWER

CHECK AGAINEXIT

Example Problem Pressure on Solid1. A box which has weight 500 N and base

area 1 m2 puts on the floor. Calculate the pressure that is given by the box to the floor.

2. Which block that have the biggest pressure? Block A that have weight 9 kg and base area 3 m2, or block B that have weight 3 kg and have base area 1 m2

3. Amir puts a wooden block with pad that touch floor with size 20 cm x 80 cm. If the pressure of that wooden block to the floor is 2,000 N/m2, calculate the force of the wooden block.

CHECK AGAIN

CHECK AGAIN

CHECK ANSWEREXIT

Example Problem Pressure on Solid1. A box which has weight 500 N and base

area 1 m2 puts on the floor. Calculate the pressure that is given by the box to the floor.

2. Which block that have the biggest pressure? Block A that have weight 9 kg and base area 3 m2, or block B that have weight 3 kg and have base area 1 m2

3. Amir puts a wooden block with pad that touch floor with size 20 cm x 80 cm. If the pressure of that wooden block to the floor is 2,000 N/m2, calculate the force of the wooden block.

EXIT

CHECK ANSWER

CHECK AGAIN

CHECK AGAIN

Example Problem Pressure on Solid1. A box which has weight 500 N and base

area 1 m2 puts on the floor. Calculate the pressure that is given by the box to the floor.

2. Which block that have the biggest pressure? Block A that have weight 9 kg and base area 3 m2, or block B that have weight 3 kg and have base area 1 m2

3. Amir puts a wooden block with pad that touch floor with size 20 cm x 80 cm. If the pressure of that wooden block to the floor is 2,000 N/m2, calculate the force of the wooden block.

EXIT

CHECK ANSWER

CHECK AGAIN

CHECK AGAIN

Example Problem Pressure on Solid1. A box which has weight 500 N and base

area 1 m2 puts on the floor. Calculate the pressure that is given by the box to the floor.

2. Which block that have the biggest pressure? Block A that have weight 9 kg and base area 3 m2, or block B that have weight 3 kg and have base area 1 m2

3. Amir puts a wooden block with pad that touch floor with size 20 cm x 80 cm. If the pressure of that wooden block to the floor is 2,000 N/m2, calculate the force of the wooden block.

CHECK AGAIN

CHECK AGAIN

CHECK AGAINEXIT

Solution

Known : F = 500 NA = 1 m2

Ask : p

Problem 1

So, the pressure that is given by the box to the floor is 500 N/m2

BACK

TO

PROBLEM

EXIT

Solution

Known : F = 500 NA = 1 m2

Ask : p

Problem 1

So, the pressure that is given by the box to the floor is 500 N/m2

BACK

TO

PROBLEM

EXIT

Solution

Known : F = 500 NA = 1 m2

Ask : p

Problem 1

So, the pressure that is given by the box to the floor is 500 N/m2

BACK

TO

PROBLEM

EXIT

Solution

Known : F = 500 NA = 1 m2

Ask : p

Problem 1

So, the pressure that is given by the box to the floor is 500 N/m2

BACK

TO

PROBLEM

EXIT

Known : F Block A = 9 NA Block A = 3 m2

F Block B = 3 NA Block B =1 m2

Problem 2

Ask : The biggest pressure

Solution : P Block A = 9N : 3m2 = 3 N/m2

P Block B = 3N : 1m2 = 3 N/m2

So, the pressure of those blocks are the same.

1 kg1 kg1 kg

9 kg =

BACK

TO

PROBLEM

EXIT

Problem 2Known : F Block A = 9 N

A Block A = 3 m2

F Block B = 3 NA Block B =1 m2

Ask : The biggest pressure

Solution : P Block A = 9N : 3m2 = 3 N/m2

P Block B = 3N : 1m2 = 3 N/m2

So, the pressure of those blocks are the same.

1 kg1 kg1 kg

9 kg =

BACK

TO

PROBLEM

EXIT

Problem 2Known : F Block A = 9 N

A Block A = 3 m2

F Block B = 3 NA Block B =1 m2

Ask : The biggest pressure

Solution : P Block A = 9N : 3m2 = 3 N/m2

P Block B = 3N : 1m2 = 3 N/m2

So, the pressure of those blocks are the same.

1 kg1 kg1 kg

9 kg =EXIT

BACK

TO

PROBLEM

Problem 2Known : F Block A = 9 N

A Block A = 3 m2

F Block B = 3 NA Block B =1 m2

Ask : The biggest pressure

Solution : P Block A = 9N : 3m2 = 3 N/m2

P Block B = 3N : 1m2 = 3 N/m2

So, the pressure of those blocks are the same.

1 kg1 kg1 kg

9 kg =

BACK

TO

PROBLEM

EXIT

Known : Size of floor = 20 cm x 80 cmp = 2, 000 N/m2

Ask : F

Solution : A = 20 cm x 80 cm= 1, 600 cm2

= 0. 16 m2

Problem 3

So, the force of a wooden block is 320 N

EXIT

BACK

TO

PROBLEM

Known : Size of floor = 20 cm x 80 cmp = 2, 000 N/m2

Ask : F

Solution : A = 20 cm x 80 cm= 1, 600 cm2

= 0. 16 m2

Problem 3

So, the force of a wooden block is 320 N

EXIT

BACK

TO

PROBLEM

Known : Size of floor = 20 cm x 80 cmp = 2, 000 N/m2

Ask : F

Solution : A = 20 cm x 80 cm= 1, 600 cm2

= 0. 16 m2

Problem 3

So, the force of a wooden block is 320 N

EXIT

BACK

TO

PROBLEM

Known : Size of floor = 20 cm x 80 cmp = 2, 000 N/m2

Ask : F

Solution : A = 20 cm x 80 cm= 1, 600 cm2

= 0. 16 m2

Problem 3

So, the force of a wooden block is 320 N

EXIT

BACK

TO

PROBLEM

Sources

1. Rumus Lengkap Fisika SMPPublisher : Wahyu Media

2. Konsep Jitu Fisika SMPPublisher : Wahyu Media

3. files.ictpamekasan.net 4. Physics For Junior High School

Publisher : yudhistira

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