Science - Grade 6 Friction Module

<p>Friction occurs when the surfaces rub against each other. (C)</p> Signup and view all the answers

<p>It prevents the glass from sliding. (B)</p> Signup and view all the answers

<p>Pushing a heavy cabinet (D)</p> Signup and view all the answers

<p>Friction stops moving objects. (A)</p> Signup and view all the answers

<p>It slows down motion. (B)</p> Signup and view all the answers

<p>opposes (D)</p> Signup and view all the answers

<p>It acts in the same direction as an object’s motion. (C)</p> Signup and view all the answers

<p>The difference in their shape or surface area (B)</p> Signup and view all the answers

<p>The box, as it stops quicker (B)</p> Signup and view all the answers

<p>The roughness of the contacting surfaces (D)</p> Signup and view all the answers

<p>The box would travel further on the wooden floor due to less friction. (A)</p> Signup and view all the answers

<p>Friction always causes moving objects to stop. (D)</p> Signup and view all the answers

<p>The car would have difficulty starting, stopping, or turning. (A)</p> Signup and view all the answers

<p>Place the box on a smooth, hard surface like a wooden board (D)</p> Signup and view all the answers

<p>Reduced friction between tires and road surface making it difficult to control the car. (A)</p> Signup and view all the answers

<p>A ball with a smooth surface (A)</p> Signup and view all the answers

<p>Adding textured surfaces to tires for better grip. (B)</p> Signup and view all the answers

<p>To decrease friction owing to the contact area. (B)</p> Signup and view all the answers

<p>It opposes the movement. (D)</p> Signup and view all the answers

<p>Rough (B)</p> Signup and view all the answers

<p>Increasing friction between shoes and the floor. (A)</p> Signup and view all the answers

<p>Using rubber soled shoes when jogging. (D)</p> Signup and view all the answers

<p>Pushing a heavy box on a waxed floor. (A)</p> Signup and view all the answers

<p>Moving on a slippery floor. (C)</p> Signup and view all the answers

<p>The air's effect on different surface areas. (D)</p> Signup and view all the answers

<p>The friction would increase. (D)</p> Signup and view all the answers

<p>She should place rollers or other similar devices under the cabinet. (C)</p> Signup and view all the answers

<p>Skating on ice. (C)</p> Signup and view all the answers

<p>Using rollers under the cabinet (D)</p> Signup and view all the answers

A force that opposes motion between two surfaces in contact.

The type of friction that acts on objects that are at rest.

The type of friction that acts on objects that are moving.

The force that opposes the motion of an object through a fluid.

The friction that occurs between two solid surfaces that are sliding over each other.

The friction that occurs between two surfaces that are rolling over each other.

Friction that is caused by the roughness of surfaces.

Friction that is caused by the attraction between molecules of two surfaces.

Friction acts in the opposite direction of movement, making it harder to move things or causing moving objects to slow down.

When two objects rub against each other, friction occurs.

Friction makes objects move more slowly or stop completely.

Friction can make it difficult to do activities that involve sliding or moving surfaces, like writing on paper or pushing a heavy cabinet.

The force that pulls objects towards the center of the Earth.

The force that makes objects move in a specific direction.

The force that exists between objects with magnetic properties, attracting or repelling them.

A force acting between two surfaces that are in contact and moving relative to each other, resisting the motion.

Friction always acts in the opposite direction of the object's motion.

Friction is caused by the interaction of the microscopic bumps and irregularities on the surfaces in contact.

Friction helps stop moving objects and prevents them from slipping or sliding.

The force opposing movement through air, caused by air particles colliding with the object.

Friction can be increased by using rougher surfaces or increasing the force pressing the surfaces together. It can be decreased by using smoother surfaces or reducing the force pressing them together.

Friction is an important force that affects our everyday lives, from walking and driving to flying and even the functioning of machines.

Friction is a force, not an energy. It does not create energy, but instead dissipates it as heat.

Drivers drive slowly because the wet road provides more friction, making stopping easier.

Rollers minimize friction by creating a smaller contact surface, allowing easier movement.

When objects are at rest, static friction prevents them from moving until enough force is applied to overcome this friction.

Kinetic friction acts on objects that are already moving, slowing them down.

The smoother the surface, the less friction there will be. Rougher surfaces create more friction.

Objects with larger surface areas in contact with the floor experience greater friction.

Friction can be useful for things like allowing us to walk, gripping objects, and stopping a car.

Friction can be a disadvantage when it causes wear and tear on moving parts or slows down a machine.

Rolling friction is less than sliding friction, which is why wheels and ball bearings are used to reduce friction.

It is the force that makes objects move slower or stop completely. Always acts in the opposite direction of movement.

A force that opposes the motion of an object through a fluid (like air or water).

The size and shape of the object will impact the amount of air resistance.

Making surfaces smoother reduces friction. Using things like oil or lubricants can also lessen friction.