Q4. Hi please help with each question in each photo! Will give thumbs up thanks!!

A pendulum clock depends on the period of a pendulum to keep correct time. Suppose a pendulum clock is keeping correct time and then Dennis the Menace slides the bob of the pendulum downward on the oscillating rod. Does the clock run slow, fast, or correctly? O fast O correctly O slow If the amplitude of a system moving in simple harmonic motion is doubled, which of the following quantities doesn't change? O total energy O maximum speed O maximum acceleration period