Which quantities are always positive in SHM?

For the motion to be simple Harmonic, Force must be linearly proportional to the displacement. Direction of Force and acceleration is always same. Therefore, it will always be positive.

Can velocity be negative in SHM?

Velocity in SHM Equation III is the expression of the velocity of S.H.M. The double sign indicates that when a particle passes through a given point in the positive direction of x, v is positive, and when it passes through the same point in opposite direction of x, v is negative.

What is quantity constant in SHM?

Total energy is always conserved and equal to 0.5mA2ω2. Thus, we can say that total energy is conserved in simple harmonic motion. Hence, option B is the correct option.

Which quantities can be negative?

Scalars can be negative, and so can a change in a scalar value. Take temperature: You can have a temperature of -10 degrees. If temperature falls from 20 to 5 degress, the change was -15 degrees.

Why is displacement negative in simple harmonic motion?

Simple harmonic motion is governed by a restorative force. For a spring-mass system, such as a block attached to a spring, the spring force is responsible for the oscillation (see Figure 1). The negative sign tells us that the force and acceleration are in the opposite direction from displacement.

What is the minimum value of kinetic energy of a particle executing SHM?

In basic harmonic motion, the speed and displacement of the target are zero at an extreme location. Note: Kinetic energy is zero at the extreme position as velocity is zero and potential energy is maximum. Potential energy is minimum at the mean position which is also the lowest position.

Is restoring force always negative?

The restoring force is the force that brings the object back to its equilibrium position. The restoring force acts in the direction opposite to the displacement. Hence restoring force is negative.

Which quantity remains constant in simple pendulum?

Total energy
Total energy of bob in simple pendulum remains constant at all instants.

Is amplitude constant in SHM?

One interesting characteristic of the SHM of an object attached to a spring is that the angular frequency, and therefore the period and frequency of the motion, depend on only the mass and the force constant, and not on other factors such as the amplitude of the motion.