Grade 8 Science: Motion and Energy
This worksheet covers fundamental concepts of motion and energy including speed, velocity, acceleration, kinetic energy, and potential energy for Grade 8 science students.
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Grade 8 Science: Motion and Energy
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Read each question carefully and answer to the best of your ability. Show all your work for calculation problems.
1. Which of the following best describes the rate at which an object changes its position?
Acceleration
Velocity
Speed
Force
2. An object's ability to do work is called:
Power
Energy
Motion
Work
1. The law of conservation of energy states that energy cannot be created or .
2. energy is the energy an object possesses due to its motion.
3. The unit of force is the .
1. An object at rest has zero kinetic energy.
True
False
2. Potential energy is dependent on an object's height and mass.
True
False
1. A car travels a distance of 200 meters in 20 seconds. Calculate its average speed.
2. Explain the difference between speed and velocity.
Observe the energy pyramid diagram and answer the question below. The diagram illustrates how energy flows through different trophic levels in an ecosystem.
1. Describe what happens to the amount of available energy as you move up the energy pyramid from producers to tertiary consumers.