Pearson Edexcel International GCSE (9–1) · PHYSICS · Unit
Forces and Motion
367 practice questions
Topics covered
Practice questions
91–100 of 181 · Normal
Question 91
4 marks · Normal
Answer and see the solution →A satellite in space is affected by two main forces: the gravitational force of attraction from the Earth, and a small force from the solar wind acting in the opposite direction.
(a)[1 mark]Name the type of force that pulls the satellite towards the Earth.
(b)[2 marks]Explain the nature of gravitational force.
(c)[1 mark]If the force from the solar wind is 0.5 N and the force due to gravity is 100 N, calculate the resultant force on the satellite (assume both act along the same line but in opposite directions).
Question 92
3 marks · Normal
Answer and see the solution →A person combs their hair and notices that some hairs are attracted to the comb. Explain why this happens and name the type of force involved.
Question 93
2 marks · Normal
Answer and see the solution →An ice skater glides across an ice rink and gradually slows down until stopping. Use scientific reasoning to explain why the skater eventually stops, and what type of force is involved.
Question 94
2 marks · Normal
Answer and see the solution →What does it mean to say that force is a vector quantity? Give one example of another vector quantity.
Question 95
4 marks · Normal
Answer and see the solution →A football is resting on a field. A player kicks the football, making it move, and it eventually comes to a stop.
(a)[2 marks]State two different effects that a force can have on an object. For each effect, give an example involving the football.
(b)[2 marks]Explain which force causes the football to slow down and eventually stop after being kicked.
Question 96
1 mark · Normal
Answer and check →Which one of the following quantities is a vector quantity?
- A.speed
- B.temperature
- C.force
- D.energy
Question 97
2 marks · Normal
Answer and see the solution →A box is pulled to the right with a force of 15 N and to the left with a force of 9 N. What is the resultant force acting on the box? State the size and the direction.
Question 98
3 marks · Normal
Answer and see the solution →Explain why friction is essential for a person to walk on the ground. What would happen if there were no friction between your shoes and the surface?
Question 99
3 marks · Normal
Answer and see the solution →A toy boat floats on a lake and is pulled forwards by a string with a force of 5 N. At the same time, water resistance acts on the boat with a force of 3 N in the opposite direction.
(a)[1 mark]Draw a labelled diagram showing all the forces acting on the boat. Indicate the directions clearly.
(b)[2 marks]Calculate the resultant force acting on the boat. State its direction.
Question 100
1 mark · Normal
Answer and check →Which of the following is not a type of force that can act on an object?
- A.Gravity
- B.Magnetism
- C.Temperature
- D.Upthrust