9Th Physics Sum Paper

9^th:         Physics                                                                 Time:15 Mins

              Marks: 12

OBJECTIVE TYPE

Q. No.1:          Choose the correct answer.                                                                               (12x1=12)

i.  Which of the next is non a derived quantity?
a.	Length		b.	Electric electrical flow		c.	Time		d.	Speed
ii. Ampere is SI unit of measurement of:
a.	Length		b.	Electric electrical flow		c.	Time		d.	Speed
iii. 1hp = ?
a.	674 W		b.	764 W		c.	746 W		d.	647 W
iv. Influenza A virus subtype H5N1 auto starts from rest. It acquires a speed of 25ms-1after 20s. The distance moved past times the auto during this fourth dimension is:
a.	31.25 m		b.	250 m		c.	500 m		d.	5000 m
v. SI unit of measurement of “g” is:
a.	ms-1		b.	kgms-1		c.	ms-2		d.	kgm2s-2
vi. Mass of the trunk is measured by:
a.	Spring residuum		b.	Screw estimate		c.	Electronic residuum		d.	Meter rule
vii. On Kelvin scale, freezing indicate of H2O ice is:
a.	0K		b.	32K		c.	273K		d.	373K
viii. Fs = ?
a.	mg		b.	R		c.	Kg		d.
ix. Metals are proficient conductor of oestrus due to:
a.	Free electrons		b.	Big size of their molecules		c.	Small size of their molecules		d.	Rapid variations of their atoms
x. Rooms are heated using gas heaters by:
a.	Conduction only		b.	Convection & radiations		c.	Radiation only		d.	Convention only
xi.  Which of the next is unit of measurement of momentum?
a.	Nm		b.	Ns		c.	kgm-1		d.	Both b & c
xii. If the velocity of a trunk moving inward a circle is doubled together with then required centripetal forcefulness volition become:
a.	Double		b.	Half		c.	Four times		d.	One third

                                                           SUBJECTIVE TYPE

  9^th: Physics                                                         Time:1 Hrs 45 Mins

                                                                                Marks: 48

Q. No.2:          Give answers of the following.                       (Any five)                                            (5x2=10)

i.	Define variable speed alongside graph.
ii.	Define meaning figure alongside an example.
iii.	Differentiate betwixt round down together with rotator motion.
iv.	Differentiate betwixt base of operations together with derived units alongside an event of each.
v.	Speed of sprinter is 8.33ms-1. Find fourth dimension taken to encompass 100m.
vi.	Convert 72kmh-1 into ms-1.
vii.	Can a trunk moving alongside constant speed stimulate got acceleration? Justify your reply alongside proper reasoning.
viii.	Define Graph.

Q. No.3:          Give answers of the following.                       (Any Five)                                           (5x2=10)

i.	Define pitch of screw gauge. Write its formula together with value.
ii.	Differentiate speed together with velocity.
iii.	Define centripetal acceleration. Write its formula an unit.
iv.	State 2nd status of equilibrium.
v.	Define watt.
vi.	Write locomote of solar cell.
vii.	Describe Einstein majority unloose energy equation.
viii.	A forcefulness of 10N is making an angle of 300 alongside the horizontal. Find Horizontal cistron of force.
ix.	Why the pinnacle of racing auto is kept low?

Q. No.4:          Give answers of the following.                       (Any five)                                            (5x2=10)

i.	Calculate density of 5 liter of H2O having majority 5kg.
ii.	Define pull per unit of measurement area together with its SI unit.
iii.	What are thermal climbers?
iv.	State regulation of floatation.
v.	Write uses of bimetallic strip.
vi.	Write resultant of surface expanse on the charge per unit of measurement of evaporation.
vii.	Convert 100 0F into 0C.
viii.	What is meant past times Anomulas expansion of water.

Note: Attempt whatever two Questions:                                                                (9x two = 18)

Q. 5:    (a).       Define repose together with motility together with explicate them every bit relative quantities.                                           (05)

(b).       Influenza A virus subtype H5N1 prepare starts from rest. It moves through 1km x 100s alongside uniform acceleration. What volition live its speed at the destination of 100s?                                                                                                       (04)

Q. 6:    (a).       State together with explicate 2nd constabulary of motion.                                                                                (05)

            (b).       The starring of a auto has radius 16cm. abide by torques produced past times a duo of 50N.                        (04)

Q. 7:    (a).       Resolve a forcefulness into its rectangular components.                                                                 (05)

(b).       Influenza A virus subtype H5N1 forcefulness acting on a trunk of majority 5kg produces on acceleration of 10ms^-2. What acceleration the same forcefulness volition attain inward a trunk of majority 8kg?                                                                   (04)