Newton's Laws

Front

What is the force that causes objects to fall to Earth?

Back

Gravity is the force that attracts two bodies towards each other, causing objects to fall towards the Earth.

Front

Inertia is the tendency of an object to resist a change in its ___________.

Back

motion

Front

Inertia depends on ______.

Back

Mass. The greater the mass of an object, the greater its inertia.

Front

Who is correct: Mac says that if he flings the jello with a greater speed it will have a greater inertia. Tosh argues that inertia does NOT depend upon speed, but rather upon mass.

Back

Tosh is correct. Inertia depends on mass, not speed.

Front

If an object is stationary (not moving) the forces acting upon it are _____________.

Back

balanced. When forces are balanced, the object remains at rest.

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion at a constant velocity unless acted upon by a net external force.

Front

What does Newton's Second Law of Motion state?

Back

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 formula for calculating force?

Back

Force (F) = mass (m) × acceleration (a).

Front

What is the significance of Newton's Third Law of Motion?

Back

For every action, there is an equal and opposite reaction.

Front

What is the relationship between mass and weight?

Back

Weight is the force exerted by gravity on an object, calculated as weight (W) = mass (m) × gravitational acceleration (g).