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WorksheetsCLASS 10 SCIENCE QUIZ(FORCE) BY DKK
Total questions: 51
Worksheet time: 26mins
A physical quantity that changes or tends to change the state(rest/motion) of an object is called:
कुनै वस्तुको अवस्था (स्थिर र गतिशिल) परिवर्तन गर्ने वा परिवर्तन गर्न खोज्ने भौतिक परिमाणलाई भनिन्छः
(a) volume
आयतन
(b) electricity
विद्युत
(c) Force
बल
(d) Density
घनत्व
What is the relation between the gravitational force and distance of center of any two bodies ?
गुरुत्वाकर्षण बल र कुनै दुई बस्तुको केन्द्रको दूरी बीच के सम्बन्ध छ?
(a) F ∝ 1/m1×m2
(b) F ∝ 1/d2
(c) F ∝ 1/m
(d) F ∝ 1/m2
What is the theory that the sun is at the center of the universe and all celestial bodies revolve around the sun called?
सूर्य ब्रह्माण्डको केन्द्रमा रहने र सबै आकाशिय पिण्डहरू सूर्यको वरिपरि घुम्ने सिध्दान्तलाई के भनिन्छ?
(a) Nuclear theory
(b) Heliocentric theory
(c) Common theory
(d) Geocentric theory
The force which acts towards the center and keeps a body in circular path is known as:
"जसले केन्द्रतर्फ क्रिया गर्छ र कुनै वस्तुलाई वृत्ताकार मार्गमा राख्छ, त्यस बललाई के भनिन्छ:"
(a) Centrifugal force.
(b) Frictional force .
(c) Pulling force
(d) centripetal force
Which one is measured in m/s2 unit ?
कुनलाई m/s2 एकाइमा नापिन्छ?
(a) Gravitational force
(b) Gravitational constant
(c) Gravity
(d) Acceleration due to gravity
When a body is falling freely under the effect of gravity without any resistance is called :
जब कुनै वस्तु गुरुत्वाकर्षणको प्रभावमा बिना कुनै अवरोध स्वतन्त्र रूपमा खस्छ, त्यसलाई के भनिन्छः
(a) Free fall
(b) Gravitational force
(c) Gravity
(d) None of them
h = ut +1/2gt2 is used to find out the ………….. .
h = ut +1/2gt2 ................. पत्ता लगाउन प्रयोग गरिन्छ।
(a) Mass of a body
बस्तुको पिण्ड
(b) pressure of liquid
तरलको चाप
(c) distance covered by a body
बस्तु द्वारा पार गरेको दूरी
(d) none of them
तिनीहरू मध्ये कुनै पनि होइन
The mass of the earth in terms of G, R and g is :
"पृथ्वीको पिण्डलाई G, R, र g का आधारमा कसरी व्यक्त गरिन्छ:"
(a) M = GgR
(b) M= gr2/G
(c) M = Gg/R2
(d) M = G/gr2
Which one is right ? कुन सहि हो ?
(a)” G” is changeable but “g” is not
G परिवर्तनीय छ तर g होइन
(b) “G” and “g” both are constant
G र g दुबै स्थिर छन्
(c) “G” is constant but “g” is changeable
G स्थिर छ तर g परिवर्तनीय छ
(d) “G” and “g” both are changeable
G र g दुबै परिवर्तनीय छन्
The value of “g” at the certain height from the surface of earth may be :
"पृथ्वीको सतहबाट निश्चित उचाइमा 'g' को मान ........... हुन्छ:"
(a) > 9.8 m/s2
(b) < 9.8 m/s2
(c) = 9.8 m/s2
(d) half of 9.8 m/s2
In which condition we feel weightlessness ?
कुन अवस्थामा हामी तौलविहीनता महसुस गर्छौं?
(a) Rest
स्थिर
(b) At zero velocity
शून्य गतिमा
(c) Free fall
स्वतन्त्र खसाइ
(d) Accelerated motion
द्रुत गति
What is the value of escape velocity of an object from the earth ?
पृथ्वीबाट कुनै वस्तुको पलायन गति कति हुन्छ ?
(a) 9.8 m/s
(b) 9.8 km/s
(c) 11.2 km/s
(d) 11.2 m/s
If the earth stops rotating about its axis , weight at equator of body becomes ……….. :
यदि पृथ्वी आफ्नो अक्ष वरिपरि घुम्न रोकिन्छ भने, वस्तुको तौल भूमध्य रेखामा .........
(a) Decrease
घट्छ
(b) Increase
वढ्छ
(c) Remains unchanged अपरिवर्तित रहन्छ
(d) Depends on mass
पिण्डमा निर्भर गर्दछ
If the radius of the Earth is doubled while keeping its mass constant, what is the new gravitational acceleration of the Earth?
यदि पृथ्वीको अर्धब्यासलाई त्यसको पिण्ड स्थिर राखेर दोब्बर बनाइन्छ भने, पृथ्वीको नयाँ गुरुत्व प्रवेग कति हुन्छ?
(a) 4.9 m/s2
(b) 9.8 m/s2
(c) 1.6 m/s2
(d) 2.45 m/s2
The gravitational mass of a body on the earth is “M “. The initial mass of the same body on the moon will be :
पृथ्वीमा रहेको बस्तुको गुरुत्वाकर्षण पिण्ड “M “ हो। चन्द्रमामा त्यहि बस्तुको प्रारम्भिक पिण्ड हुनेछः
(a) M
(b) M/6
(c) 6M
(d) 1.6M
If the distance between the moon and the earth is doubled, what will be the gravitational force(F) between them?
यदि चन्द्रमा र पृथ्वी बीचको दूरी दोब्बर भयो भने तिनीहरू बीचको गुरुत्वाकर्षण बल (F) कति हुनेछ?
(a) 2F
(b) 4F
(c) F/2
(d) F/4
A speed of 36 km/h into m/s becomes :
३६ km/s को गति m/s मा हुन्छः
(a) 10 m/s
(b) 20 m/s
(c) 30 m/s
(d) 40 m/s
Which of the following is right formula ?
तलका मध्ये कुन सही सूत्र हो?
(a) R2 = Gg/M
(b) G = R2/Mg
(c) R2 = GM/g
(d) M = Gg/R2
Which one is the value of “g” in CGS unit?
CGS एकाइमा "g" को मान कुन हो?
(a) 9.8cm/s2
(b) 98 cm/s2
(c) 980 cm/s2
(d) 9800cm/s2
What does it mean to say that the acceleration of an object is 10 m/s²?
कुनै वस्तुको प्रवेग 10 m/s² हो भन्नुको अर्थ के हो?
(a) The speed of this body increases by10 m/s in every second.
बस्तुको वेग प्रत्येक सेकेन्डमा 10 m/s ले बढ्छ।
(b) The speed of this body increases by10 m in every second.
बस्तुको वेग प्रत्येक सेकेन्डमा 10 m ले बढ्छ।
(c) The velocity of this body increases by10 m/s in every second.
बस्तुको गति प्रत्येक सेकेन्डमा 10 m/s ले बढ्छ।
(d) The velocity of this body increases by10 m/s2 in every second.
बस्तुको गति प्रत्येक सेकेन्डमा 10 m/s2 ले बढ्छ।
Which one is the unit of force in CGS system ?
CGS प्रणालीमा बलको एकाइ कुन हो?
(a) Newton
(b) Dyne
(c) Kg m/s2
(d) KWh
The value of acceleration due to gravity is:
गुरुत्व प्रवेगको मान :
(a) the least on poles.
ध्रुवहरूमा सबैभन्दा कम हुन्छ।
(b) the least on equator.
भूमध्य रेखामा सबैभन्दा कम हुन्छ।
(c) same on equator and poles.
भूमध्य रेखा र ध्रुवहरूमा समान हुन्छ।
(d) increase from pole to equator.
ध्रुव देखि भूमध्य रेखा सम्म वृद्धि हुदै जान्छ।
What is the net force on 200 g stone when it hits a wall with acceleration of 10 m/s2?
200g को ढुङ्गाले 10 m/s2 को प्रवेगको साथ पर्खालमा ठोक्दा कति बल उत्पन्न हुन्छ?
(a) 1 N
(b) 2 N.
(c) 3 N.
(d) 4 N
What will be different on the moon than on the earth?
पृथ्वीमाभन्दा चन्द्रमामा के फरक होला?
(a) Mass.
(b) Weight.
(c) Volume.
(d) Both (a) and (b).
Which one is not equal to 1 newton?
कुन 1 न्यूटन सगँ बराबर छैन?
(a) 105 dynes.
(b) 1 kg m/s2
(c). 1 J/s.
(d) 1 J/m.
The amount of force due to pull of gravity is called:
"गुरुत्वाकर्षणको तान्ने बलको कारणले लाग्ने बललाई के भनिन्छ:"
(a) Weight
तौल
(b) Force बल
(c) Mass पिण्ड
(d) pressure चाप
Which one is difference between mass and weight ?
पिण्ड र तौल बीचको भिन्नता कुन हो?
(a) mass is a force and weight is a quantity
पिण्ड एक बल हो र तौल एक परिमाण हो
(b) mass and weight both are force
पिण्ड र तौल दुवै बल हुन्
(c) mass and weight both are same
पिण्ड र तौल दुवै समान छन्
(d) mass is quantity and weight is force
पिण्ड परिमाण हो र तौल बल हो
Which physical quantity is measured by a spring balance?
कमानी तराजु द्वारा कुन भौतिक परिमाण मापन गरिन्छ?
(a) Mass
पिण्ड
(b) Time समय
(c) Weight
तोल
(d) acceleration
प्रवेग
What is the value of G at the surface of moon ?
चन्द्रमाको सतहमा G को मान कति हुन्छ?
(a) 9.8m/s2
(b) 1.6 m/s2
(c) 11.2 km/s2
(d) 6.67×10-11 Nm2/kg2
How much force needed to accelerate 1 kg of masses at the rate of 1m/s2 ?
१ किलोग्राम पिण्डलाई १ m/s2 को दरले गति दिन कति बल आवश्यक पर्छ?
(a) 10 N
(b) 9.8 N
(c) 1 N
(d) 100 N
Who is Devendra Kumar Karna?
Social Teacher
Nepali Teacher
Science Teacher
Computer Teacher
What is the name of this scientist?
यो वैज्ञानिक को नाम के हो?
Blaze pascal
Sir Issac Newton
Stephen Hawking
Plato
What is the relation between the gravitational force and mass of any two bodies ?
कुनै दुई वस्तुको गुरुत्वाकर्षण बल र पिण्ड बीचको सम्बन्ध के हो?
(a) F∝1/m1×m2
(b) F∝m1×m2
(c) F∝1/m
(d) F∝1/m2
What is 1 AU called ?
1 AU लाई के भनिन्छ?
(a) Distance between the earth and the moon.
पृथ्वी र चन्द्रमा बीचको दूरी।
(b) Distance between the sun and the moon.
सूर्य र चन्द्रमा बीचको दूरी।
(c) Distance between the earth and the sun.
पृथ्वी र सूर्य बीचको दूरी।
(d) Distance between the earth and the Jupiter.
पृथ्वी र बृहस्पति बीचको दूरी।
Frictional force is depend upon :
(a) area of body .
(b) Weight of body
(c) Mass of body .
(d) roughness of the surface
Which one is the wrong statement about balanced force?
सन्तुलित बलको बारेमा गलत भनाइ कुन हो?
(a) It is equal to magnitude and opposite in direction.
यो परिमाणमा बराबर र दिशामा विपरीत हुन्छ।
(b) It does not produced motion in a body.
यसले बस्तुमा गति उत्पन्न गर्दैन।
(c) It produces acceleration in a body.
यसले बस्तुमा गति बढाउँछ।
(d) The resultant force is always zero
परिणामात्क बल सधैं शून्य हुन्छ।
When a body is falling freely under the effect of gravity without any resistance is called :
जब कुनै बस्तु कुनै अबरोध बिना गुरुत्वबल को प्रभावमा स्वतन्त्र रूपमा खस्छ, यसलाई भनिन्छः
(a) Free fall
स्वतन्त्र खसाइ
(b) Gravitational force
गुरुत्वाकर्षण बल
(c) Balanced force
सन्तुलित बल
(d) Pressure
चाप
What is the value of escape velocity of an object from the earth ?
पृथ्वीबाट कुनै वस्तुको पलायन गति कति हुन्छ?
(a) 9.8 m/s
(b) 9.8 km/s
(c) 11.2 km/s
(d) 11.2 m/s
Swimming is possible by newton’s ……....... .
न्युटनको .................. नियम अनुसार पौडी खेल्न सम्भव छ।
(a) Law of gravitation
(b) 1st law of motion
(c) 2nd law of motion
(d) 3rd law of motion
Choose the right statement of the following ?
तलका मध्ये सहि कथन छान्नुहोस्ः
(a) Value of gravitational constant (G) is 6.67×10-11Nm/kg2.
गुरुत्वाकर्षण स्थिरता "G" को मान 6.67×10-11Nm/kg2 छ।
(b) Average value of acceleration due to gravity is 9.8 m/s.
गुरुत्व प्रवेगको औसत मान 9.8 m/s हो।
(c) The value of escape velocity of the earth is 11.2 km/s .
पृथ्वीमा पलायन गति को मान 11.2 km/s छ
(d) The greatest value of “g” is at the equator of earth.
"g" को सबैभन्दा ठूलो मान पृथ्वीको भूमध्य रेखामा हुन्छ।
The value of acceleration due to gravity is:
गुरुत्व प्रवेग को मान होः
(a) the least on poles. ध्रुवहरूमा सबैभन्दा कम हुन्छ।
(b) the least on equator.
भुमध्ये रेखामा सबैभन्दा कम हुन्छ।
(c) same on equator and poles.
भुमध्ये रेखा र ध्रुवहरुमा बराबर हुन्छ।
(d) increase from pole to equator.
ध्रुव देखि भूमध्य रेखा सम्म वृद्धि हुद जान्छ।
An object weighs 24 N on moon, its mass would be :
चन्द्रमामा २४ N तौल भएको वस्तुको पिण्ड ............
(a) 15 kg
(b) 25 kg
(c) 23.4 kg
(d) 2.4 kg
Center of gravity is usually located where ......
(a) more weight is concentrated
(b) less weight is concentrated
(c) less mass is concentrated
(d) more mass is concentrated
Spring balance is used to measure
(a) Mass
(b) Time
(c) Weight
(d) acceleration
Distance of moon from earth is
(a) 3.84 × 108 m
(b) 3.84 × 108 km
(c) 1.5 ×108 km
(d) 6 × 108 m
If the earth stops rotating about its axis , then the value of “g” at pole will :
(a) Decrease
(b) Increase
(c) Remains unchanged
(d) none of them
What is the condition called, at which the weight of a body of certain mass becomes zero ?
(a) high gravity
(b) Gravity less
(c) Weightlessness
(d) None of them
What is the final velocity of a stone which thrown upward with 20 m/s initial velocity ?
(a) 0 m/s
(b)10 m/s
(c) 20 m/s
(d) 30 m/s
If m1 and m2 be the masses of two bodies and “d” be the distance between them then gravitational force (F) is equal to :
(a) Gm1m2/d2
(b) Gm1m2
(c) Gm1m2 + d2
(d) Gm1m2 × d2
1 newton is not equal to :
(a) 105 dynes.
(b) 1 kg m/s2
(c). 1 J/s.
(d) 1 J/m.
If the radius of the earth is halved keeping mass constant , the new acceleration due to the gravity of the earth is :
(a) 2.45 m/s2
(b) 9.8 m/s2
(c) 39.2 m/s2
(d) 4.9 m/s2
