Forces and Interactions Worksheet
Explore the fundamental concepts of forces, motion, and interactions through various question types for Grade 8 Science.
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Forces and Interactions
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Read each question carefully and answer to the best of your ability. Show all your work for calculations.
1. Which of the following is an example of a contact force?
Gravity
Magnetic force
Friction
Electric force
2. An object at rest tends to stay at rest, and an object in motion tends to stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force. This statement describes:
Newton's Second Law
Newton's Third Law
Newton's First Law
Law of Conservation of Energy
3. A is a push or a pull.
4. The force that opposes motion between two surfaces in contact is called .
5. Newton's Third Law states that for every action, there is an equal and opposite .
6. An object with a larger mass will have less inertia.
True
False
7. The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.
True
False
8. Explain the difference between mass and weight.
9. Describe a real-world example of Newton's Third Law of Motion.
10. Observe the image below showing a single pulley system. If you pull down on the rope with a force of 50 N, what is the maximum weight you can lift (ignoring friction)?
