HP1 Semester 1 Review

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or configuration. It is greatest at the highest point of an object, such as the top of a roller coaster.

Front

At which point of the roller coaster is potential energy the greatest?

Back

At point W, where the roller coaster is at its highest elevation.

Front

What is a vector?

Back

A vector is a quantity that has both magnitude and direction, such as velocity or force.

Front

What type of force is associated with magnets?

Back

Magnetic force.

Front

What is the formula to calculate weight?

Back

Weight (W) = mass (m) × gravitational acceleration (g). On Earth, g is approximately 9.8 m/s².

Front

If a person weighs 450 N on Earth, what is their mass?

Back

Mass = Weight / g = 450 N / 9.8 m/s² ≈ 45.9 kg.

Front

What is displacement?

Back

Displacement is the shortest distance from the initial to the final position of an object, including direction.

Front

If you walk 4 m west and then 3 m north, what is your displacement?

Back

Using the Pythagorean theorem, displacement = √(4² + 3²) = 5 m.

Front

What is gravitational force?

Back

Gravitational force is the attractive force between two masses, such as the Earth and an object.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.