friction, gravity and Newtons laws

Front

What is the force that opposes motion between two surfaces in contact?

Back

Friction is the force that opposes the relative motion of two surfaces in contact.

Front

What is Newton's 1st Law of Motion?

Back

Newton's 1st Law states that an object at rest will stay at rest, and an object in motion will stay in motion at a constant velocity unless acted upon by a net external force.

Front

How does gravity change as the mass of two objects increases?

Back

As the mass of two objects increases, the gravitational force between them increases.

Front

What does it mean if the motion of an object is changing?

Back

If the motion of an object is changing, it means that its speed or direction is changing.

Front

What does it mean for forces to be balanced?

Back

Balanced forces are equal in size and opposite in direction, resulting in no change in motion.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

What is the formula for calculating gravitational force?

Back

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

Front

What is Newton's 2nd Law of Motion?

Back

Newton's 2nd Law 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

What is the effect of friction on motion?

Back

Friction opposes motion, causing objects to slow down or stop.

Front

What is the relationship between mass and weight?

Back

Weight is the force of gravity acting on an object's mass, calculated as weight = mass * gravity.