(2024) NGSS Physics Fall Final Review

Front

What is the law of conservation of momentum?

Back

The law states that the total momentum of a closed system before a collision is equal to the total momentum after the collision.

Front

How do you calculate mass using force and acceleration?

Back

Mass (m) can be calculated using Newton's second law: m = F/a, where F is the net force and a is the acceleration.

Front

What happens to the gravitational force when the mass of one or both objects increases?

Back

The gravitational force increases; specifically, it is proportional to the product of the masses.

Front

What is the formula for gravitational force between two masses?

Back

F = G * (m1 * m2) / r^2, where G is the gravitational constant, m1 and m2 are the masses, and r is the distance between their centers.

Front

What is Newton's second law of motion?

Back

It states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F = ma).

Front

If the net force acting on an object is zero, what can be said about its motion?

Back

The object is either at rest or moving with a constant velocity (it is in equilibrium).

Front

What is the relationship between charge and electric force?

Back

The electric force between two charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them.

Front

What is the unit of force in the International System of Units (SI)?

Back

The unit of force is the Newton (N).

Front

How do you convert grams to kilograms?

Back

To convert grams to kilograms, divide the number of grams by 1000.

Front

What is the acceleration due to gravity on Earth?

Back

The acceleration due to gravity on Earth is approximately 9.81 m/s².