The force with which the Earth attracts an object is called:
Weight of the object
The force with which Earth attracts an object is its weight, and this force is dependent on the mass of the object and the gravitational pull of Earth. Therefore, the correct answer is (d) Weight of the object.
A metallic sphere of mass 1 kg and volume 2 × 10-4 m³ is completely immersed in water. The buoyant force exerted by water on the sphere is:
A body floats in a liquid if the buoyant force is:
A motorcycle has an initial velocity of 5 m/s. After 3 seconds, the velocity is 7 m/s. The displacement of the motorcycle in 3 seconds is:
The minimum power required to lift a mass of 50 kg up to a vertical distance of 8 m in 10 s is: (Take g = 10 m/s²)
What special name is given to the frictional force exerted by a fluid?
______ is used in periscope.
Zero degree centigrade is equal to what degree Fahrenheit?
A. 100°F
B. 30°F
C. 34°F
D. 32°F
Keeping voltage constant, if more lamps are put into a series circuit, the overall current in the circuit:
A. Increases
B. Decreases
C. Remains the same
D. Becomes infinite
Excessive curvature of eye lens leads to _______