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Questions and Answers
Which of the following is an example of a contact force?
Which of the following is an example of a contact force?
- Gravity pulling an object towards the Earth
- The force exerted by a magnet on a metal object
- The force of a person pushing a shopping cart (correct)
- The force of air resistance on a falling object
What are the two components into which contact forces are often decomposed?
What are the two components into which contact forces are often decomposed?
- Friction and tension
- Electrical and magnetic forces
- Normal force and friction force (correct)
- Gravity and magnetism
Which of the following is NOT a contact force?
Which of the following is NOT a contact force?
- The force of a person pushing a door open
- The force of a person lifting a box
- The force of a person throwing a ball
- The force of gravity pulling an object towards the ground (correct)
What is the difference between a contact force and a body force?
What is the difference between a contact force and a body force?
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Which of the following is an example of a contact force acting for a short impulse?
Which of the following is an example of a contact force acting for a short impulse?
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Which force is responsible for most visible interactions between macroscopic collections of matter?
Which force is responsible for most visible interactions between macroscopic collections of matter?
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What is the force between an object and the Earth called?
What is the force between an object and the Earth called?
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Which forces can exist without contact occurring?
Which forces can exist without contact occurring?
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What are the two components into which contact forces are often decomposed?
What are the two components into which contact forces are often decomposed?
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Which of the following is an example of a contact force acting continuously?
Which of the following is an example of a contact force acting continuously?
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