Discussion
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- Question
If an object moves in a circular path with uniform ________, its motion is called uniform circular motion.
Options- A. speed
- B. Time
- C. Velocity
- D. Acceleration
- Correct Answer
- speed
- 1. Which phenomenon is responsible for the echo of sound wave?
Options- A. Reflection
- B. Refraction
- C. Interference
- D. Polarisation Discuss
- 2. What type of force acts on a car moving around a curve?
Options- A. Centrifugal force
- B. Cohesive force
- C. Centripetal force
- D. Gravitational force Discuss
- 3. Why does a cannon recoil after firing ?
Options- A. Conservation of energy
- B. Backward thrust of gases produced
- C. Newton's third law of motion
- D. Newton's first law of motion Discuss
- 4. The phenomenon of change in direction of light when it passes from one medium to another is called
Options- A. Propagation
- B. Reflection
- C. Refraction
- D. Dispersion Discuss
- 5. 'Parsec' is the unit measurement of
Options- A. Density of stars
- B. Astronomical distance
- C. Brightness of heavenly bodies
- D. Orbital velocity of giant stars Discuss
- 6. The reflection formed by the plane mirror is ________________.
Options- A. vertical inversion
- B. a real image
- C. lateral inversion
- D. an enlarged image Discuss
- 7. Convex and concave mirrors are examples of?
Options- A. Plane mirrors
- B. Spherical mirrors
- C. Inverted mirror
- D. Erect mirror Discuss
- 8. The distance-time graph for the motion of an object moving with a constant speed is a __________.
Options- A. Dot
- B. Circle
- C. Straight Line
- D. Curve Discuss
- 9. According to the Second Law of Motion, for a given force, acceleration is inversely proportional to the ____ of an object.
Options- A. density
- B. volume
- C. force
- D. mass Discuss
- 10. In science a push or pull of an object is called ________.
Options- A. Pick
- B. Lift
- C. Force
- D. Shut Discuss
Physics problems
Search Results
Correct Answer: Reflection
Correct Answer: Centripetal force
Explanation:
It is a force that acts on a body moving in a circular path and is directed towards the centre around which the body is moving is called as Centripetal force.
Correct Answer: Newton's third law of motion
Correct Answer: Refraction
Correct Answer: Astronomical distance
Correct Answer: lateral inversion
Correct Answer: Spherical mirrors
Correct Answer: Straight Line
Correct Answer: mass
Correct Answer: Force
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