Science 6 Q3 L1 Kinds of Forces and Its Effects

What is defined as a push or pull?

• Frictional force

• Force

• Tension force

• Spring force

Answer explanation

A push or pull is defined as a force. Force is the correct choice as it represents the action of pushing or pulling on an object.

Which force is responsible for causing objects to float?

• Centrifugal force

• Buoyancy

• Normal force

• Air resistance force

Answer explanation

Buoyancy is the force responsible for causing objects to float by exerting an upward force on them, counteracting the force of gravity.

What force is exerted by two objects with positive and negative charges?

• Gravitational force

• Electrical force

• Magnetic force

• Nuclear force

Answer explanation

The force exerted by two objects with positive and negative charges is the Electrical force.

Which force is directed away from the center of rotation for a moving body in a circular path?

• Nuclear force

• Magnetic force

• Centrifugal force

• Centripetal force

Answer explanation

Centrifugal force is directed away from the center of rotation for a moving body in a circular path, causing the body to move outward.

What force holds the particles in the nucleus together?

• Normal force

• Centrifugal force

• Buoyancy

• Nuclear force

Answer explanation

The correct force holding particles in the nucleus together is the nuclear force, not normal force, centrifugal force, or buoyancy.

Which force is the force of attraction between two objects with mass or energy?

• Centripetal force

• Gravitational force

• Magnetic force

• Electrical force

Answer explanation

Gravitational force is the force of attraction between two objects with mass or energy, as described by Newton's law of universal gravitation.

What force is exerted by two surfaces that contact and slide against each other?

• Frictional force

• Tension force

• Air resistance force

• Spring force

Answer explanation

The correct force exerted by two surfaces that contact and slide against each other is the frictional force.

Which force is necessary to keep an object moving in a curved path and directed inward toward the center of rotation?

• Centrifugal force

• Centripetal force

• Electrical force

• Magnetic force

Answer explanation

Centripetal force is necessary to keep an object moving in a curved path and directed inward toward the center of rotation.

What force changes the direction of a moving object?

• Gravitational force

• Centripetal force

• Electrical force

• Magnetic force

Answer explanation

Centripetal force is the force that changes the direction of a moving object, keeping it in a curved path.

Which force is the force that holds the particles within protons and neutrons together?

• Centrifugal force

• Weak nuclear force

• Normal force

• Buoyancy

Answer explanation

The correct force that holds the particles within protons and neutrons together is the Weak nuclear force.