When in Rome Review

Front

What force acts on an object in free fall after it leaves a surface?

Back

The force of gravity.

Front

If a block is pushed across a rough surface at constant speed, what can be said about the frictional force?

Back

The frictional force is equal to the applied force.

Front

What is the formula to calculate the tension in a rope when an object is being pulled at an angle?

Back

Tension can be calculated using the formula T = mg / cos(θ), where m is mass, g is acceleration due to gravity, and θ is the angle with the ceiling.

Front

What is the relationship between mass, weight, and gravity?

Back

Weight is the force exerted by gravity on an object, calculated as Weight = mass × gravity (W = mg).

Front

What does it mean for an object to be in equilibrium?

Back

An object is in equilibrium when the net force acting on it is zero, meaning all forces are balanced.

Front

What is the normal force?

Back

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

Front

What is the significance of a frictional force being equal to the applied force?

Back

It indicates that the object is moving at a constant speed, meaning there is no net acceleration.

Front

How do you determine the angle of a rope when pulling an object horizontally?

Back

Use trigonometric functions, specifically tan(θ) = opposite/adjacent, where opposite is the vertical force and adjacent is the horizontal force.

Front

What is the effect of friction on the motion of an object?

Back

Friction opposes the motion of an object, causing it to slow down or stop.

Front

What is the difference between static and kinetic friction?

Back

Static friction acts on an object at rest, preventing it from moving, while kinetic friction acts on an object in motion.