# PHY101 TMA Solution . Guaranteed scores

#### PHY101 TMA Question and Answer

Q1 in a perfectly inelastic collision

Q2 in an inelastic collision which of the following is not true?

Q3 The collision between two or more objects during which no energy is lost is called

Q4 The sudden impact felt between two or more objects is called

Q5 Linear momentum is always conserved when the rate of change of momentum is

Q6 Work is a product of

Q7 The path followed by the projectile is known as

Q8 The range of a projectile launched from the ground is the

Q9 In a projectile motion, at maximum height the verticle component of velocity is

Q10 Projectile motion is an example of motion in how many dimensions?

Q11 The transfer of heat through solids is known as

Q12 The constant -volume gas thermometer is normally refered to as the

Q13 Force is equal to the product of mass and

Q14 Which of the following is the SI Unit of momentum

Q15 The product of force and time is equal to

Q16 A symmetrical body rotating about an axis with one point fixed at the centre of gravity is called ———-

Q17 A body starts from rest and accelerates uniformly at a rate of 5m/s2. calculate its velocity after 90m

Q18 A ball is thrown vertically upwards from the ground with an initial velocity of 50m/s. The total time spent by the ball in the air will be ———–

Q19 A man will exert the greatest pressure on a bench when he ———-

Q20 The slope of a straight line displacement time graph gives the ————–

Q21 The force of —————allow cars to move on the roads without skidding

Q22 Acceleration due to gravity is ————– at the poles than at the equator

Q23 The —————- velocity is the minimum velocity needed by an object to be project into space from the surface of the earth.

Q24 Acceleration due to gravity increases with ————–

Q25 Below the earth’s surface, the accelaration due to gravity decreases linearly with

Q26 which of the following is not a fundamental force

Q27 The acceleration due to gravity vary from location to location because of the effect of earth’s

Q28 The √2gr is known as the

Q29 The height of the parking orbit above the surface of the is given by

Q30 The internal energy U of a system depends on the

Q31 The velocity of orbiting satellite is given by

Q32 The gravitational force on a sattelite produces the centripetal acceleration that keeps the satellite in

Q33 The path describe by a satellite round the sun is a

Q34 When there is no reaction force to an objects weight, the object becomes

Q35 The path of a satellite whose period of revolution is equal to the period of rotation of the earth about its axis is known as

Q36 The process in which energy is transfered by means of electromagnetic waves is known as

Q37 1kg mass placed on the moon will weigh

Q38 Which of the quantities vary from point to point on the surface of the earth

Q39 Energy expended per time is called

Q40 The quantity of matter contained in a body is called

Q41 Newton’s second law states that the rate of change of momentum is directly proportional to the

Q42 Stable equilibrium happens when the forces in the displaced position act such that they return the body to its

Q43 In a circular motion which of the following quantities is constant

Q44 When a body accelerates in motion it means that its

Q45 The velocity of a particle at some point of its path is called

Q46 Velocity is defined as

Q47 A car that takes 2hrs to travel from kaduna to kagoro along a winding road over a distance of 200km is said to have an average speed of

Q48 If you run on a winding path from point A to point B and travel a distance of 240m in 20sec then your average speed is

Q49 Which of the following is a vector quantity?

Q50 The result of the cross product of two vectors is a

Q51 The scalar product of any two vectors at right angles to each other is always

Q52 The degree of hotness or coldness of a body is called

Q53 if Vector P = 5i -2j and Q=3i+3j and R=4i-j . What is P+Q+R?

Q54 A Null vector is a vector whose magnitude is

Q55 If a force of 40N acting in the direction due East and a force of 30N is acting in the direction due North. Then the magnitude of the resultant forces will be

Q56 A Scalar quantity has only

Q57 A Vector quantity has both direction and

Q58 the change in the thermo-electric e.m.f per degree Celsius in temperature between the hot and cold junctions is known as

Q59 The dimension of coefficient of linear expansion is

Q60 The thermometer that is constructed by using the Seebeck effect is known as

Q61 Which of the following gives the dimension of velocity?

Q62 Which of the following will give the dimension of Area

Q63 The SI Unit of time is

Q64 Which of the following quantities have a derived unit?

Q65 which of the following gives the meaning of pressure?

Q66 Which the following is the unit of force?

Q67 The SI Unit of velocity is

Q68 The SI unit of absolute temperature is

Q69 The convenient quantity used as the standard of measurement of a physical quantity is called

Q70 Which of the following quantities have a fundamental unit?

Q71 Units of measurement are classified into fundamental and

Q72 the mean solar day is equal to how many mean solar seconds?

Q73 A car is moving at a speed of 100kmh-1 what will be the distance covered after 20 seconds?

Q74 The first Newton’s law of motion is also called the

Q75 The coordinate system in which the motion of any object depends only on the interactions of the constituents particles is called

Q76 The reluctance of an object to start or stop moving is known as

Q77 When coordinates of an object changes over time the object is said to be

Q78 when coordinates of an object remain fixed despite the time , the object is said to be

Q79 Every object on the surface of the earth is in constant motion with respect to

Q80 A body is said to be at rest when it does not change position with