Question
Explain the difference between weight and mass.
✓
Answer
The weight of an object is the gravitational force acting on it and it varies at different places due to the change in gravitational acceleration $g . W = mg$. Mass of the object (m) tells the amount of substance in it which remains constant.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Consider a pair of identical pendulums, which oscillate with equal amplitude independently such that when one pendulum is at its extreme position making an angle of 2° to the right with the vertical, the other pendulum makes an angle of 1° to the left of the vertical. What is the phase difference between the pendulums?
Water flows through the tube shown in The areas of cross-section of the wide and the narrow portions of the tube are 5cm2 and 2cm2 respectively. The rate of flow of water through the tube is 500cm3/s. Find the difference of mercury levels in the U-tube.
In the figure, three blocks are tied with two strings $A$ and $B . m_1=10 kg, m_2=5 kg, m_3=5 kg$. The bottom is frictionless. If $m _3$ is pulled to the right by applying a horizontal force of 50 N then calculate the tension in the strings.
→If a particle is accelerating, it is either speeding up or speeding down. Do you agree with this statement?
A particle executes simple harmonic motion with an amplitude of 10cm. At what distance from the mean position are the kinetic and potential energies equal?
The fundamental frequency of a closed pipe is 293Hz when the air in it is at a temperature of 20°C. What will be its fundamental frequency when the temperature changes to 22°C?
An electron gun emits 2.0 × 1016 electrons per second. What electric current does this correspond to?
A ball is projected from a point on the floor with a speed of 15m/s at an angle of 60° with the horizontal. Will it hit a vertical wall 5m away from the point of projection and perpendicular to the plane of projection without hitting the floor? Will the answer differ if the wall is 22m away?
Find the average force needed to accelerate a car weighing 500kg from rest to 72km/h in a distance of 25m.
What will be the value of the coefficient and performance of $a$ Carnot refrigerant oprating between $40^{\circ} C$ and $0^{\circ} C$ ?
→