# Mechanics

## Mechanics

Calculator Allowed: Yes Question Answer Transcription of this question: Bl.This question is in two parts. Part 1 is about units and momentum and Part 2 is about X-rays.Part 1 Units and momentum(a)(b)Distinguish between fundamental units and derived units.The rate Of change ofmomentum R Of an Object moving at speed v in a stationary fluid Ofconstant […]

## Mechanics

Calculator Allowed: Yes Question Answer Transcription of this question: Bl.This question is in two parts. Part 1 is about momentum and energy and Part 2 is aboutgravitation.Part 1 Momentum and energy(a)(b)Define impulse Of a force and state the relation between impulse and momentum.definitionrelationBy applying Newton’s laws Of motion to the collision Of two particles, deduce […]

## Mechanics

Calculator Allowed: Yes Question Answer Transcription of this question: B3.This question is in two parts.Part 1 is about mechanics.Part 2 is about wave-particle duality.Part 1Mechanics(a) A girl falls from rest on to the horizontal surface Of a trampoline.The graph below shows the variation with time t Of the net force F exerted on the girlbefore, […]

## Mechanics

Calculator Allowed: Yes Question Answer Transcription of this question: B4.This question is in two parts. Part 1 is about power and an ideal gas and Part 2 is aboutphotoelectric effect.Part 1 Power and an ideal gas(a)(b)Define power.A constant force Of magnitude F moves an Object at constant speed v in the directionOf the force. Deduce […]

## Mechanics

Calculator Allowed: Yes Question Answer Transcription of this question: A2.This question is about momentum.(a) A rocket in outer space far from any Other masses is used to propel a satellite. Atthe engines are turned on and gases leave the rear Of the rocket with speed v relative tothe rocket.(i)(ii)satellitefuelrocketExplain, in terms of Newton’s laws of […]

## Mechanics

Calculator Allowed: No Question Answer Transcription of this question: 15.The diagram below shows the trajectory Of a ball thrown into the air. There is no air resistance.trajectory of ballWhich arrow gives the direction of the resultant force on the ball at the point X

## Mechanics

Calculator Allowed: No Question Answer Transcription of this question: 14.A block rests on a rough horizontal plane. The plane is gradually tilted at one end until the blockbegins to slide. The block accelerates down the plane.Which Of the following is a true statement.A.B.D.The weight Of the block equals the dynamic friction force.The weight Of the […]

## Mechanics

Calculator Allowed: No Question Answer Transcription of this question: 13.For a body to be in equilibriumA.B.D.the net force acting on the body must be zero.the net torque acting on the body must be zero.both the net force and the net torque acting on the body must be zero.the net force must be equal and opposite […]

## Mechanics

Calculator Allowed: No Question Answer Transcription of this question: A trolley of mass 1.5 kg is pulled along a horizontal table by a force Of SON.mass 1.5kgThe frictional force acting on the trolley is 0.50 N.The acceleration Of the trolley is0.30ms0.33ms3_Oms3.3ms

## Mechanics

Calculator Allowed: No Question Answer Transcription of this question: 8.The spring constant Of the spring is given byA. the gradient Of the graph _gradient Of the graphc.