Unit Three Review Flashcardizz

Front

What is inertia?

Back

Inertia is the property of an object to resist changes in its state of motion. It is directly related to the mass of the object; the greater the mass, the greater the inertia.

Front

What two factors affect the gravitational force between two objects?

Back

The two factors that affect the gravitational force between two objects are mass and distance. The gravitational force increases with greater mass and decreases with greater distance.

Front

What happens to gravitational force if the distance between two objects is doubled?

Back

If the distance between two objects is doubled, the gravitational force between them becomes 4 times smaller.

Front

How do you calculate acceleration when a force is applied?

Back

Acceleration can be calculated using Newton's second law of motion: a = F/m, where 'a' is acceleration, 'F' is the force applied, and 'm' is the mass of the object.

Front

What is the force exerted by a surface on an object resting on it?

Back

The force exerted by a surface on an object resting on it is called the normal force. It acts perpendicular to the surface.

Front

What is the formula for gravitational force?

Back

The formula for gravitational force is F = G(m1*m2)/r^2, where F is the gravitational force, G is the gravitational constant, m1 and m2 are the masses of the two objects, and r is the distance between their centers.

Front

What is the relationship between mass and weight?

Back

Weight is the force exerted by gravity on an object and is calculated as W = mg, where 'W' is weight, 'm' is mass, and 'g' is the acceleration due to gravity.

Front

What is the effect of friction on motion?

Back

Friction is a force that opposes the motion of an object. It acts parallel to the surfaces in contact and can slow down or stop the movement.

Front

What is the difference between mass and weight?

Back

Mass is a measure of the amount of matter in an object, while weight is the force exerted on that mass by gravity. Mass is constant, but weight can change depending on the gravitational field.

Front

What is Newton's first law of motion?

Back

Newton's first law of motion states that an object at rest will remain at rest, and an object in motion will remain in motion at a constant velocity unless acted upon by a net external force.