Qasim is learning about elasticity. He understands that stress is the force per unit area causing deformation. What is the SI unit of stress?

The limit of proportionality is the point where:

Samir is learning about atmospheric pressure. He understands that atmospheric pressure decreases with altitude. At high altitudes, what happens to the boiling point of water?

In a load-extension graph, the straight line shows:

Bongani is studying the hydraulic car brake system. He learns that the brake fluid transmits pressure from the brake pedal to the brake pads. Why is brake fluid used?

Ibrahim is learning about liquid pressure. He understands that liquid pressure increases with depth. In a swimming pool, where is the pressure greatest?

David is studying pressure. He learns that pressure is defined as force per unit area. If a force of 100 N is applied over an area of 2 m², what is the pressure?

Which instrument measures atmospheric pressure?

Ibrahim is learning about atmospheric pressure and weather. He understands that rising barometer readings indicate improving weather. What does a rising barometer suggest?

Julia is studying applications of atmospheric pressure. She learns that a syringe works because of atmospheric pressure. When you pull the plunger of a syringe, what happens?

A stiffer spring has:

Rania is studying pressure. She understands that pressure can be exerted by solids, liquids, and gases. What is the SI unit of pressure?

Aisha is learning about the hydraulic lift. She understands that the hydraulic lift is used to lift heavy vehicles. What is the advantage of a hydraulic lift?

Tina is studying pressure. She understands that pressure is a scalar quantity. What is the direction of pressure in a fluid?

Mohamed is learning about the hydraulic lift. He understands that a hydraulic lift uses Pascal's principle to multiply force. If a small piston with area 0.1 m² is pushed with a force of 100 N, what is the force on a large piston with area 2 m²?

Usman is learning about atmospheric pressure and weather. He understands that falling barometer readings indicate an approaching storm. What type of weather is associated with a falling barometer?

Omar is learning about elasticity. He understands that the elastic limit is the maximum stress a material can withstand without permanent deformation. What happens if a material is stretched beyond its elastic limit?

The SI unit of pressure is:

Nadia is studying the hydraulic car brake system. She learns that the brake system uses Pascal's principle. When the brake pedal is pressed, the pressure is transmitted through the brake fluid. What happens to the brake pads?

Vera is studying applications of atmospheric pressure. She learns that atmospheric pressure is used to lift objects with suction cups. How does a suction cup work?

Carlos is learning about elasticity. He understands that Young's modulus is a measure of the stiffness of a material. What is the unit of Young's modulus?

Liquid pressure depends on:

Yara is studying the manometer. She learns that a manometer is a simple device for measuring pressure. Which of the following is a disadvantage of a mercury manometer?

Chloe is learning about the application of Hooke's Law. She knows that it is used in spring balances. What does a spring balance measure?

Paula is studying Hooke's Law. She learns that Hooke's Law is valid only up to the elastic limit. What is the constant of proportionality in Hooke's Law called?

Atmospheric pressure decreases with:

Which liquid produces more pressure at same depth?

George is learning about atmospheric pressure and weather. He understands that changes in atmospheric pressure can indicate weather changes. Which of the following is associated with high pressure?

Fatima is studying pressure. She understands that pressure can be increased by increasing force or decreasing area. Which of the following increases pressure?

Omar is learning about the hydraulic lift. He understands that the hydraulic lift works by transmitting pressure through a fluid. What is the fluid used in most hydraulic lifts?