Friction and Tension

What is tension in ropes?

• Force applied to a rope when it is pulled or stretched.

• The weight of the rope

• The color of the rope

• The length of the rope

What is tension in pulleys?

• The tension in pulleys is the force exerted by the pulley on the rope or belt.

• The tension in pulleys is the speed at which the pulley rotates.

• The tension in pulleys is the distance between the pulley and the object being lifted.

• The tension in pulleys is the force exerted by the rope or belt on the pulley.

Which of the following statements about tension in pulleys is true?

• The tension in pulleys is equal throughout the system.

• The tension in pulleys decreases as the load increases.

• The tension in pulleys is only present in one side of the system.

• The tension in pulleys increases as the load increases.

In a system of pulleys, if the tension in one rope is increased, what happens to the tension in the other ropes?

• The tension in the other ropes fluctuates.

• The tension in the other ropes decreases.

• The tension in the other ropes remains the same.

• The tension in the other ropes also increases.

In a system of pulleys, if the tension in one rope is decreased, what happens to the tension in the other ropes?

• The tension in the other ropes will fluctuate.

• The tension in the other ropes will increase.

• The tension in the other ropes will remain the same.

• The tension in the other ropes will also decrease.

Which of the following factors affect the tension in a rope?

• Temperature, volume, and density

• Force, angle, and mass

• Length, speed, and color

• Time, pressure, and velocity

When an object is in equilibrium, what can be said about the tension in the ropes supporting the object?

• The tension in the ropes supporting the object is greater than the weight of the object.

• The tension in the ropes supporting the object is less than the weight of the object.

• The tension in the ropes supporting the object is unrelated to the weight of the object.

• The tension in the ropes supporting the object is equal and opposite to the weight of the object.

Which of the following statements about friction is true?

• Friction only occurs between solid objects.

• Friction is a force that helps objects move faster.

• Friction is a force that attracts objects to each other.

• Friction is a force that opposes the motion of objects in contact with each other.

Which of the following factors affect the frictional force between two surfaces?

• Color of the surfaces, temperature, humidity

• Distance between the surfaces, time of day, sound waves

• Nature of surfaces, force pressing surfaces together, presence of lubricants or contaminants

• Weight of the surfaces, smell, taste