Exploring Types of Forces in Physics

What is a force?

• A state of rest

• A form of matter

• An interaction that causes changes in motion or shape

• A type of energy

Which of the following is a contact force?

• Static electricity

• Friction

• Magnetism

• Gravity

What is required for a contact force to occur?

• A large mass

• Physical contact between two surfaces

• An electric charge

• A magnetic field

Which of the following is an example of a non-contact force?

• Friction

• Tension

• Magnetism

• Normal force

What creates a magnetic force field in certain materials?

• Random movement of electrons

• Electrons moving in the same direction

• Neutrons moving in the same direction

• Protons moving in the same direction

What happens when two North poles of magnets are brought close to each other?

• They create a spark

• They have no effect on each other

• They attract each other

• They repel each other

What causes static electricity?

• Neutrons jumping from one object to another

• Protons jumping from one object to another

• Atoms splitting

• Electrons jumping from one object to another

What happens to an object that loses electrons?

• It becomes negatively charged

• It becomes positively charged

• It becomes magnetic

• It becomes neutral

According to Newton's universal law of gravitation, what affects the gravitational pull between two objects?

• The color of the objects

• Both the mass and the distance between the objects

• Only the mass of the objects

• Only the distance between the objects

Why do we notice gravitational pull more with larger masses?

• Because smaller masses have no gravitational pull

• Because larger masses have a stronger gravitational pull

• Because larger masses are closer to us

• Because larger masses are more visible