PS semester final

Front

What is mechanical advantage?

Back

Mechanical advantage is the ratio of the output force exerted by a machine to the input force applied to it. It indicates how much a machine multiplies force.

Front

How do you calculate the mechanical advantage of a ramp?

Back

Mechanical advantage of a ramp can be calculated using the formula: Mechanical Advantage = Length of Ramp / Height of Ramp.

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or configuration. It is often associated with the height of an object above the ground.

Front

At which position is potential energy the greatest in a pendulum?

Back

Potential energy is greatest at the highest point of the swing, where the pendulum is momentarily at rest.

Front

What happens to potential energy as height increases?

Back

As height increases, potential energy increases because potential energy is directly proportional to height.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion, calculated using the formula: KE = 1/2 mv², where m is mass and v is velocity.

Front

At which point in a pendulum's swing is kinetic energy highest?

Back

Kinetic energy is highest at the lowest point of the swing, where the speed of the pendulum is greatest.

Front

What is the transformation of chemical potential energy in fireworks?

Back

In fireworks, chemical potential energy transforms into kinetic energy, heat, light, and sound energy.

Front

What is the relationship between height and potential energy?

Back

The relationship is direct; as height increases, potential energy increases.

Front

What is the formula for calculating potential energy?

Back

Potential Energy (PE) = mgh, where m is mass, g is acceleration due to gravity, and h is height.