CLASS-9TH SCIENCE MCQ QUESTIONS CHAPTER-7

question 1 – which is not a vector quantity?

(a) – acceleration

(b)- velocity

(c)- charge

(d)- displacement

Answer – (c) – charge

question 2-The rate of charge in distance is called:

(a) – acceleration

(b)- velocity

(c)- speed

(d)- all the above

Answer-(b)- velocity

question 3-The rate of change in displacement is called :

(a)- acceleration

(b)- velocity

(c)- speed

(d)- all the above

Answer – (d)- all the above

question 4- The rate of change in velocity is called :

(a)- acceleration

(b)- velocity

(c)-speed

(d)- all the above

Answer- (b)- velocity

question 5- incorrect statement is:

(a)- displacement can be equal to distance

(b)- for moving objects displacement can be zero

(c)- for moving objects displacement can be zero

(d)- all the above

Answer- (a)- displacement can be equal to distance

question 6- The distance-time graph is parallel to time- axis , it shows :

(a)- accelerated motion of the object

(b)- stationary position of the object

(c)- uniform motion of the object

(d) – non- uniform motion of the object

Answer – (c) uniform motion of the object

question 7-The velocity- time graph is parallel to time-axis, it shows :

(a)- accelerated motion of the object

(b)- stationary position of the object

(c)- uniform motion of the object

(d)- non- uniform motion of the object

Answer(b) – stationary position of the object

Question – 8 – M/S is the S. I  unit  OF

(a) – acceleration

(b) – velocity

(c) – distance

(d) – displacement

Answer – (velocity)

Question – 9 – M/S2 is the S . I  unit of

^{(a) –   acceleration} 

^{(b) – velocity}

^{(c) – distance} 

^{(d) – displacement} 

^{Answer – ( a) – acceleration}

^{Question –  10 – The slop of time-time graph shows} 

(a) – acceleration

(b) – velocity

(c) – speed

(d) – displacement

Answer – (c) – speed

Question – 11 – The slop of velocity-time graph shows

(a) – acceleration

(b) – velocity

(c) – speed

(d) – displacement

Answer – (a) – acceleration

Question – 12 – The velocity-time graph in the form of straight line sloping downwards,  shows

(a) – accelerated motion

(b) – uniform motion

(c) – constant motion

(d) – retarded motion

Answer – (d) – retarded motion

Question – 13 – uniform circular motion is

(a) – accelerated motion

(b) – motion with uniform acceleration

(c) – motion with uniform retardation

(d) – none of the above

Answer – (a) – accelerated motion

Question – 14 – a cyclist is moving with a speed of 18km/h his speed is

(a) – 10 m/s

(b) – 7.5 m/s

(c) – 5.0 m/s

(d) – 2 m/s

Answer (c) – 5.0 m/s

Question – 15 – for a moving object ratio of displacement to distance is

(a) – always more than 1

(b) – equal or less than 1

(c) – always less than 1

(d) – always equal to 1

Answer – (b) – equal or less than 1

WRITTEN BY- SHEELU YADAV

TYPIST  BY- SHIVAM & ANSHUMAN

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