MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Earn 100

The diagram shows a tank that is filled with oil. The density of the oil is 920 kgm3.

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Calculate the weight of the oil in the tank.

Important Questions on Forces and Matter

MEDIUM
Upper Secondary: IGCSE
IMPORTANT

The diagram shows a tank that is filled with oil. The density of the oil is 920 kgm3.

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Now calculate the pressure using p=hpg. Do you find the same answer?

MEDIUM
Upper Secondary: IGCSE
IMPORTANT

The diagram shows a tank that is filled with oil. The density of the oil is 920 kgm3.

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The pressure on the bottom of the tank is caused by the weight of the oil. Calculate the pressure using:

P=FA.

EASY
Upper Secondary: IGCSE
IMPORTANT

A student measures an unstretched spring. He adds weights to the spring and measures its new length each time.

Copy the correct equation that shows how to calculate the extension of the spring.

extension =Length of spring -load

extension =Original length -Length when stretched

extension =Length when stretched -Original length

EASY
Upper Secondary: IGCSE
IMPORTANT

A student measures an unstretched spring. He adds weights to the spring and measures its new length each time.

Copy the correct graph to show the extension of a spring changes as the load on it is increased.

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EASY
Upper Secondary: IGCSE
IMPORTANT

Hooke's law describes how extension of a spring relates to the load on the spring. 

State Hooke's law in words.

MEDIUM
Upper Secondary: IGCSE
IMPORTANT

Hooke's law describes how extension of a spring relates to the load on the spring.

Hooke's law can be written as F=kx. Rewrite this as a word equation.

EASY
Upper Secondary: IGCSE
IMPORTANT

Hooke's law describes how the extension of a spring relates to the load on the sprint.

Sketch an extension-load graph for a spring that obeys Hooke's law. Mark the part of the graph that shows that the spring obeys Hooke's law. Mark also the limit of proportionality.

MEDIUM
Upper Secondary: IGCSE
IMPORTANT

Copy and complete the following sentence, by writing either increases / decrease  in each gap.

Pressure  When the force acting increases.