This content will contain useful questions on Machines. It is ideal for students to preparing to sit for any exams at both junior and senior high school level. Preparing for any exams has always not been easy, as a results only a few see success, such people are the ones who go the extra-mile.
Hop onto the bus as we serve you with another set of questions on machines. Find all the questions below;
Structured question simple machines for both BECE/WASSCE candidates
- State the machines that are used for the following activities.
Cutting vegetables – cracking nuts – opening coke bottle
- Illustrate each of the following with a suitable diagram
First class lever – third class lever
- Explain the efficiency of a machine is not always up to 100%
- A machine of velocity ratio of 5 is used to raise a load of weight 25N. What is the mechanical advantage of the machine?
What is the efficiency of the machine?
- Explain each of these terms and state their units
Work – power – energy
- Give three examples of wheel and axle
- Inclined plane is said to be a simple machine, briefly explain this statement.
- Mr Kwabena pulled a load of 30N along a horizontal smooth surface. If the work done by Mr Kwabena is estimated to be 300J, calculate the distance he covered.
- Give two examples each of each of the three types of levers.
- Briefly explain the terminologies below as used in simple machines. Work output – velocity ratio – mechanical advantage – work input
- Differentiate between simple and compound machines
- State five examples of compound machines.
- A rigid bar is used to lift a stone
Draw a diagram showing the effort, pivot and load positions.
If the length of the bar is 100cm and the pivot is placed 80cm from the effort, calculate the load distance.
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