WAEC (WASSCE) Physics · Interaction of matter, space and time
Newton's laws of motion: WAEC Physics Past Questions and Answers
What the WAEC syllabus covers in Newton's laws of motion
Our summary: Newton's three laws, momentum and impulse, and how they explain everyday motion.
- Distinction between inertia mass and weight
- First law: inertia of rest and inertia of motion (Use of timing devices e.g. ticker-timer to determine the acceleration of a falling body and the relationship when the accelerating force is constant.)
- Second law: force, acceleration, momentum and impulse (Linear momentum and its conservation. Collision of elastic bodies in a straight line.)
- Third law: action and reaction (Applications: recoil of a gun, jet and rocket propulsions.)
Syllabus content © The West African Examinations Council (WASSCE (harmonised West African syllabus)).
WAEC (WASSCE) Physics questions on Newton's laws of motion
- WAEC 2024The law of conservation of momentum is stated for closed and isolated system. What are the two conditions for a system to be closed and isolated?
- WAEC 2024A boy of mass 40 kg jumps off a stationary skateboard and moves horizontally with a speed of 1.5 m/s while the skateboard moves in the opposite direction with a…
- WAEC 2024A body moves with uniform velocity when the resultant force on it is
- WAEC 2023When a light-weight body and a massive body are acted upon by the same force for the same period of time, the
- WAEC 2023A lead bullet of mass 0.05 kg is fired with a speed of 200 m/s into a lead block of mass 0.95 kg at rest. Given that the lead block moves after the impact…
- WAEC 2023The following statements are observations made about a towing vehicle and a bus that is being towed I. The force exerted on the bus by the towing vehicle is of…
- WAEC 2022The engine of a car provides a forward force of 1240 N and the total resistive force on the car is 800N. If the mass of the car is 1220 kg, determine the…
- WAEC 2022The area under a force-time graph represents--------
- WAEC 2020The quantity of motion of a body is its
- WAEC 2020A 60kg man stands on a weighing balance in an elevator. If the elevator accelerates upwards at 5ms ^ -2 , determine the reading of the scale. [g = 10ms ^ -2 ]
- WAEC 2020In collision between two objects, kinetic energy is conserved only if
- WAEC 2019The mass of a load is doubled while the force acting on it is halved. The resulting acceleration of the load is
- WAEC 2019In an elastic collision, momentum is conserved as well as well as?
- WAEC 2019An 800 kg car moving at 80 km hr ^ -1 collides with a 1200 kg car moving at 40 km hr ^ -1 in the same direction. If the cars stick together, calculate their…
- WAEC 2019Which of the following statements about a moving object is correct?
- WAEC 2018The property of a body to remain at rest or to continue in uniform motion in a straight line is called
- WAEC 2016A ball is dropped from the top of a tower. Due to air resistance,it reaches terminal velocity. Which of the following statement(s) about its motion is/are…
- WAEC 2014When the linear momentum of a body is constant, the net force acting on it
- WAEC 2014If no net force acts on an object, the object maintains a state of rest or constant speed in a straight line. The above is a statement of Newton's
- WAEC 2013From Newton's first law of motion,
- WAEC 2012A resultant force of magnitude 15N acts on a body of mass 250g. Calculate the magnitude of the acceleration
- WAEC 2012A girl stands on a scale in a lift. If the reading on the scale is less than her weight, then the lift is moving
- WAEC 2012The tendency for a stationary body to continue to remain at rest when a force is applied to it is known as
- WAEC 2011An object of mass 5.0 kg moves with a velocity of 10 ms^ -1 . Calculate its momentum.
- WAEC 2010A moving body of mass 25.0kg undergoes a uniform retardation of 20.0 ms^ -2 . Calculate the magnitude of the retardating force
- WAEC 2010Which of the following statements about moving particle is correct?
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