Physics Quiz

What is a diode

State Newton’s 1st Law of Motion

Define the term inertia

A tout placed a bag on the carrier of a matatu. State and explain what happens to the bag when the vehicle starts moving suddenly.

State Newton’s 2nd Law of Motion

A body of mass M is allowed to slide down an inclined plane. State two factors that affect its final velocity at the bottom of the incline plane.

A body of mass m initially at rest is acted on by a force F for a time t, as a result its velocity changes to a final value V. Show that the gain is kinetic energy E= ½ MV2

A car of mass 1200kg moving at 90km/h is brought to rest over a distance of 20m. Calculate the breaking force

A body of mass 5 kg is ejected vertically from the ground when a force of 600N acts on it for 0.1s. Calculate the velocity with which the body leaves the ground.

A bullet of mass 22 g traveling at a velocity of 18/ms penetrates a sand bag and is brought to rest in 0.6 s. Find: The depth of penetration in metres The average retarding force of the sand