Quiz on Forces: Contact and Non-Contact

What is a force?

• A type of energy

• A scalar quantity with only magnitude

• A push or pull that acts on an object due to its interaction with another object

• A measure of an object's mass

In which unit is force measured?

• Joules

• Watts

• Newtons

• Pascals

Which of the following is a contact force?

• Magnetic force

• Gravitational force

• Friction

• Electrostatic force

What is the key characteristic of non-contact forces?

• They can act through empty space

• They are always repulsive

• They require physical contact between objects

• They only act on charged objects

Which of the following is NOT a non-contact force?

• Tension

• Electrostatic force

• Magnetic force

• Gravitational force

What is the normal contact force also known as?

• Gravitational force

• Magnetic force

• Reaction force

• Electrostatic force

Which force is described as a force of attraction between any two objects that have mass?

• Gravitational force

• Electrostatic force

• Tension

• Magnetic force

What happens to the strength of non-contact forces as objects get further apart?

• It becomes zero

• It decreases

• It remains the same

• It increases