Contact And Non-contact Forces (GCSE Physics)

Which of the following pairs are both examples of contact forces?

Two magnets are held near each other so their like poles face. What non-contact force acts between them and what is its direction?

A small object of mass m is held at rest in air by a string. Which diagram of forces correctly lists the two vertical forces acting on the object and their directions?

On a vertical rope holding a lamp, which statement is true about the contact force in the rope?

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

A metal dome on a Van de Graaff style generator becomes negatively charged. A person touches the dome and their hair stands on end. Why does the hair stand up?

A charged rod is brought near, but does not touch, an uncharged metal sphere that is earthed. Electrons flow to ground so the near side becomes positively charged and attraction occurs. This process is called:

When you rub a plastic rod with a cloth and the rod becomes negatively charged, what has happened at the electron level?

A point force that acts where two objects touch (for example friction or normal reaction) is called a contact force. Which of the following is a contact force?

A textbook rests on a table. Which force pairs act on the textbook and are equal in magnitude when it is at rest?

A car parked on a slope has a tendency to slide down. Which two forces must be present for the car to be in static equilibrium on the slope?