IPC Ch.3 Review

Front

What is friction?

Back

Friction is a force that resists motion between two surfaces that are pressed together.

Front

What is weightlessness?

Back

Weightlessness is the sense of absence of weight experienced when in free fall.

Front

What does the strength of gravity between two objects depend on?

Back

The strength of gravity depends on the mass of the objects and the distance between them.

Front

How do you calculate mass from weight?

Back

Mass (m) can be calculated using the formula m = F/g, where F is weight in Newtons and g is the acceleration due to gravity (9.8 N/kg on Earth).

Front

What is gravity?

Back

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

Front

What is the formula for calculating weight?

Back

Weight (W) is calculated using the formula W = m * g, where m is mass and g is the acceleration due to gravity.

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.

Front

What is inertia?

Back

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

Front

What is the role of air resistance?

Back

Air resistance is a force that opposes the motion of an object through the air, affecting its speed and acceleration.

Front

What happens to gravity as distance increases?

Back

As the distance between two objects increases, the strength of gravity between them decreases.