CAIE IGCSE Physics 1.8 Pressure Topic Practice

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Question 1

[Maximum number: 1]

A student uses her thumb to push a drawing pin (thumb tack) into a notice board.
The pin goes into the board but does not penetrate her thumb.
Which statement explains this?

A

The force exerted by the pin on her thumb is greater than the force exerted by the pin on the notice board.

B

The force exerted by the pin on the notice board is greater than the force exerted by the pin on her thumb.

C

The pressure of the pin on her thumb is greater than the pressure of the pin on the notice board.

D

The pressure of the pin on the notice board is greater than the pressure of the pin on her thumb.

Question 2

[Maximum number: 1]

The diagram shows a solid block resting on a bench. The dimensions of the block are shown.

Figure for Question 2 — CAIE IGCSE Physics

On which labelled surface should the block rest to produce the smallest pressure on the bench?

A

P

B

Q

C

R

D

P, Q and R produce the same pressure

Question 3

[Maximum number: 1]

A drawing pin (thumb tack) has a sharp point at one end and a flat surface at the other end.

Figure for Question 3 — CAIE IGCSE Physics

The pin is pushed into a wooden board.
How do the pressure and the force at the sharp point compare with the pressure and the force on the flat surface?

force at the sharp point

pressure at the sharp point

greater than on the flat surface

greater than on the flat surface

greater than on the flat surface

less than on the flat surface

the same as on the flat surface

greater than on the flat surface

the same as on the flat surface

less than on the flat surface

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