Applications of Forces Quiz

What is the force that opposes the motion of an object when it is in contact with another object?

• gravity

• friction

• momentum

• inertia

What are the factors that affect the force of friction between two surfaces?

• Material of the surfaces, age of the surfaces, taste of the surfaces

• Weight of the objects, distance between the surfaces, smell of the surfaces

• Color of the surfaces, temperature of the environment, time of day

• Nature of the surfaces, force pressing the surfaces together, smoothness of the surfaces

How does friction help in walking or driving a car?

• Friction provides grip and prevents slipping

• Friction makes it easier to slide and lose control

• Friction has no effect on walking or driving

• Friction reduces the grip and causes slipping

What is the force that pulls objects towards the center of the Earth?

• centrifugal force

• gravity

• friction

• magnetism

How does the weight of an object change when it is taken to the moon?

• The weight decreases

• The weight increases

• The weight remains the same

• The weight becomes zero

What is the relationship between mass and weight?

• Weight is the force exerted on an object due to gravity, and it is directly proportional to the mass of the object.

• Weight is the same as mass

• Weight is inversely proportional to the mass of the object

• Mass and weight are completely unrelated

Explain how a magnet attracts or repels another magnet.

• Opposite poles repel, while like poles attract.

• Magnets attract or repel based on their size.

• Magnets attract or repel based on their color.

• Opposite poles attract, while like poles repel.

What are the properties of magnetic materials?

• Generating electricity

• Absorbing heat

• Reflecting light

• Attracting or repelling other magnetic materials, and can be magnetized

How can magnetic forces be used in everyday life?

• Magnetic forces can be used in cooking food

• Magnetic forces can be used in magnetic locks, MRI machines, speakers, and electric motors.

• Magnetic forces can be used in painting walls

• Magnetic forces can be used in gardening