A constant force acts on a moving toy cart for a fixed duration. Which of the following modifications makes this constant force produce a greater change in the velocity of the cart?
decreasing the mass of the cart
increasing the temperature of the cart
replacing the cart with one of a different shape but the same mass
replacing the cart with one of a different material but the same mass
183 exam-style questions on CIE IGCSE Physics 1.5.1a Forces, resultant force and motion. Each one has a worked solution and a mark scheme showing where the marks go.