Adv. Review on Forces1

Front

What is the normal force?

Back

The normal force is the force exerted by a surface that supports the weight of an object resting on it, acting perpendicular to the surface.

Front

What is the force of friction when a 10-newton block slides down a 30-degree incline at constant speed?

Back

5N

Front

What decreases when an object is moved using an inclined plane?

Back

The force needed to move the object.

Front

What is the net force acting on an object held at rest on a frictionless incline?

Back

Zero.

Front

What is the net force and direction of motion when forces are balanced?

Back

0 N not moving.

Front

What is the formula for calculating the force of gravity on an object?

Back

F = m * g, where F is the force, m is the mass, and g is the acceleration due to gravity (approximately 9.8 m/s²).

Front

What is an inclined plane?

Back

An inclined plane is a flat surface tilted at an angle to the horizontal, used to help raise or lower objects.

Front

How does an inclined plane affect the force needed to move an object?

Back

It reduces the force needed to move the object by spreading the weight over a longer distance.

Front

What is static friction?

Back

Static friction is the force that keeps an object at rest and prevents it from moving when a force is applied.

Front

What is kinetic friction?

Back

Kinetic friction is the force that opposes the motion of two surfaces sliding past each other.