#### 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**