Cambridge grade 8 (pressure)

In physics, pressure is defined as the _____ over a given area.

• Work

• Force

• Mass

• Energy

What is the standard unit of measure for pressure?

• Joule

• Newton

• Ampere

• Pascal

A 40 N block exerts 20 Pa of pressure on a table. What is the area of the block that is touching the table?

• 0.5 meters squared

• 1 meters squared

• 2 meters squared

• 4 meters squared

A bucket of water is placed on the floor and puts pressure of 3 kPa on the floor. What is the surface area of ​​the bottom of the bucket if the mass of the bucket along with water is 12 kg and the acceleration of Earth's gravity is 10 m/s²?

• 0,04 m²

• 0,03 m²

• 0,02 m²

• 0,01 m²

Look at the picture!

A broad base beam of 1.5 m² placed over the cylinder area of 0.5 m². if the weight of the beam and the weight of each cylinder are 200 N, then the amount of pressure received is ...

• 1000 Pa

• 800 Pa

• 600 Pa

• 400 Pa

An iron cube which has a side length of 10 cm is placed on the desk surface area of 4 m². if the weight of the cube is 60 N, then the pressure produced by the iron cube is ...

• 8000 N/m²

• 6000 N/m²

• 4000 N/m²

• 2000 N/m²

The sole of the boot has a total area of 0,025 m². A 55 kg person is wearing these boots and takes s step on one foot. Calculate the pressure the boots is applaying to the ground?

• 22000 Pa

• 2200 Pa

• 220 Pa

• 22 Pa

The following are the quantities affecting the magnitude of the pressure of solids are ...

• Compressive force and area of ​​the object pressed

• Compressive force and Area of ​​compressive

• weight Object and surface area

• Sharpness of objects and area