#151 Flashcardizz for Force and Motion Test (Part 1 )

Front

What is friction?

Back

Friction is a force that opposes the motion of an object when it comes into contact with another surface.

Front

How can friction be reduced?

Back

Friction can be reduced by reducing the force acting between two surfaces, reducing the roughness of the surfaces, or using lubricants like wax, grease, or oil.

Front

What is compression?

Back

Compression is a contact force where materials are pushed together.

Front

What type of force can be exerted over distance?

Back

Noncontact forces can be exerted over distance, such as gravitational force or magnetic force.

Front

What is gravity?

Back

Gravity is a noncontact force that attracts two bodies towards each other, depending on their masses and the distance between them.

Front

What is the role of air resistance in motion?

Back

Air resistance is a type of friction that opposes the motion of objects moving through the air, affecting their speed and acceleration.

Front

What happens to an object in free fall?

Back

An object in free fall experiences only the force of gravity acting on it, leading to acceleration towards the Earth.

Front

What is the difference between contact and noncontact forces?

Back

Contact forces require physical contact between objects, while noncontact forces act at a distance without direct contact.

Front

What is fluid friction?

Back

Fluid friction is the resistance encountered by an object moving through a fluid (liquid or gas), such as air or water.

Front

How does mass affect gravitational force?

Back

The gravitational force between two objects increases with greater mass and decreases with greater distance between them.