Karen Morrison and Nick Hamshaw Solutions for Exercise 5: Exercise 22.5

Author:Karen Morrison & Nick Hamshaw

Karen Morrison Mathematics Solutions for Exercise - Karen Morrison and Nick Hamshaw Solutions for Exercise 5: Exercise 22.5

Attempt the practice questions from Exercise 5: Exercise 22.5 with hints and solutions to strengthen your understanding. Cambridge IGCSE® Mathematics Core and Extended Coursebook Second Edition solutions are prepared by Experienced Embibe Experts.

Questions from Karen Morrison and Nick Hamshaw Solutions for Exercise 5: Exercise 22.5 with Hints & Solutions

EASY
Upper Secondary: IGCSE
IMPORTANT

In physics, the kinetic energy (E) of a particle can be found using the formula E=12mv2, where m is the mass, and v is the velocity of the particle.

Find E when m=8 and v=3.5.

EASY
Upper Secondary: IGCSE
IMPORTANT

In physics, the kinetic energy (E) of a particle can be found using the formula E=12mv2, where m is the mass, and v is the velocity of the particle.

Show how you could rearrange the formula to find v.

EASY
Upper Secondary: IGCSE
IMPORTANT

The volume (V) of a cylinder is found using the formulaV=πr2h, where r is the radius and h is the height of the cylinder.

Find the volume, correct to the nearest cm3 of a cylinder with a radius of 0.8 m and height of 1 m.

MEDIUM
Upper Secondary: IGCSE
IMPORTANT

The volume (V) of a cylinder is found using the formula V=πr2h, where r is the radius and h is the height of the cylinder.

Rearrange the formula to make r the subject.

EASY
Upper Secondary: IGCSE
IMPORTANT

You can use the formula A=πd24 to find the area (A) of a circle, where d is the diameter of the circle.

Find the area of a circle of diameter 1.2 m.

EASY
Upper Secondary: IGCSE
IMPORTANT

Use the formula A=πr2 to find the area of a circle of diameter 1.2 m

MEDIUM
Upper Secondary: IGCSE
IMPORTANT

You can use the formula A=πd24 to find the area (A) of a circle, where d is the diameter of the circle.

Express the formula A=πd24 in a way that would allow you to find the diameter of the circle when the area is known.