JAMB Physics · Energy, pressure and heat
Simple machines: JAMB Physics Past Questions and Answers
What the JAMB syllabus covers in Simple machines
Our summary: Levers, pulleys and other machines, and how to work out their mechanical advantage and efficiency.
- Definition of simple machines
- Types of machines
- Mechanical advantage, velocity ratio and efficiency of machines
Objectives
- identify different types of simple machines;
- solve problems involving simple machines.
Syllabus content © The Joint Admissions and Matriculation Board (UTME).
JAMB Physics questions on Simple machines
- JAMB 2025A hydraulic press consists of two cylinders of cross-sectional radius r 1 and r 2 . If a force of 200N applied to the smaller piston (r 1 ), causes a force of…
- JAMB 2025A machine has an efficiency of 80%. If the input work is 200J, the output work is?
- JAMB 2024If the velocity ratio of a machine is 4, what does it mean?
- JAMB 2024A load of 300N is to be lifted by a machine with a velocity ratio of 2 and an efficiency of 60%. What effort will be applied to lift the load?
- JAMB 2024An effort of 40N is applied on a machine to lift a mass of 60kg. Determine the mechanical advantage of the machine [ g = 10ms ^2 ]
- JAMB 2022Which of these is a second-class lever?
- JAMB 2019The pitch of a screw jack is 0.45cm and the arm is 60cm long. If the efficiency of the Jack is 75/π %, calculate the mechanical advantage.
- JAMB 2019Calculate the velocity ratio of a screw jack of pitch 0.2cm if the length of the tommy bar is 23cm
- JAMB 2018What effort will a machine of efficiency 90% apply to a load of 180N if its efforts arm is twice as long as its load arm?
- JAMB 2018A 20kg mass is to be pulled up a slope inclined at 30° to the horizontal. If efficiency of the plane is 75%. The force required to pull the load up the plane is…
- JAMB 2017A block and tackle pulley arrangement has 6 pulleys in which an effort of 50N supports a load of 200N, calculate the efficiency of the machine
- JAMB 2016Which of the following statements is correct about a machine?
- JAMB 2015If the mechanical advantage of a machine is 4. What is its ratio for LOAD to EFFORT?
- JAMB 2015What is the relationship mechanical advantage (MA) velocity Ratio (V.R) and efficiency with percentage?
- JAMB 2014A wheel and an axle is used to raise a load whose weight is 800N when an effort of 250N is applied. If the radii of the wheel and axle are 800mm and 200mm…
- JAMB 2014A machine whose efficiency is 75% is used to lift a load of 1000N. Calculate the effort put in to the machine if it has a Velocity ratio of 4.
- JAMB 2012A block and tackle is used to raise a load of 250N through a vertical distance of 30m. What is the efficiency of the system if the work done against friction is…
- JAMB 2011A machine is used to lift a load of 20 N through a height of 10 m. if the efficiency of the machine is 40%, how much work is done?
- JAMB 2010A machine of velocity ratio 6 requires an effort of 400 N to raise a load of 800 N through I m. Find the efficiency of the machine
Years with Simple machines questions in DeeepSolve's question bank
From the past questions DeeepSolve holds, not a count of everything the exam body has set.
- 2025
- 2024
- 2022
- 2019
- 2018
- 2017
- 2016
- 2015
- 2014
- 2012
- 2011
- 2010