Friction & Inclined Planes

Front

What is the normal force?

Back

The normal force is always perpendicular to the surface.

Front

In which direction does friction act relative to sliding?

Back

Friction acts in the opposite direction to sliding.

Front

What is the component of weight parallel to an inclined plane?

Back

The component of weight parallel to the incline can be calculated using the formula: W_parallel = W * sin(θ), where W is the weight and θ is the angle of the incline.

Front

What happens to the net force on an object moving down a frictionless ramp?

Back

The net force is equal to the component of the weight acting down the ramp.

Front

How do you calculate the net force on an object on an incline?

Back

Net force can be calculated using: F_net = W_parallel - F_friction, where W_parallel is the weight component down the incline and F_friction is the frictional force.

Front

What is the role of friction on an inclined plane?

Back

Friction opposes the motion of an object sliding down the incline.

Front

If a block is accelerating down a frictionless ramp, what can be said about the forces acting on it?

Back

The only force acting on it is the component of its weight parallel to the ramp.

Front

What is the formula for calculating the weight component perpendicular to an incline?

Back

W_perpendicular = W * cos(θ), where W is the weight and θ is the angle of the incline.

Front

What does it mean for a cart to roll down an inclined plane with constant speed?

Back

It means that the net force acting on the cart is zero, indicating that friction balances the component of weight down the incline.

Front

How does the angle of an incline affect the normal force?

Back

As the angle of the incline increases, the normal force decreases because a larger component of weight acts parallel to the incline.