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Questions and Answers
What is the primary mechanism of heat transfer in a metal object?
What is the primary mechanism of heat transfer in a metal object?
Which experiment demonstrates the straight-line travel of light?
Which experiment demonstrates the straight-line travel of light?
What is the principle of light behaviour demonstrated when measuring the angle of incidence and reflection?
What is the principle of light behaviour demonstrated when measuring the angle of incidence and reflection?
What occurs when light passes from one medium to another with a different optical density?
What occurs when light passes from one medium to another with a different optical density?
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What type of energy is converted into electrical energy when using a solar panel?
What type of energy is converted into electrical energy when using a solar panel?
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Which medium primarily transfers heat through the movement of its particles?
Which medium primarily transfers heat through the movement of its particles?
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What is the principle of light that represents the bending of a pencil in a beaker of water?
What is the principle of light that represents the bending of a pencil in a beaker of water?
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Which activity converts chemical energy into kinetic energy?
Which activity converts chemical energy into kinetic energy?
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What is the primary mechanism of heat transfer in a gas?
What is the primary mechanism of heat transfer in a gas?
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What type of energy is released when burning wood in a fireplace?
What type of energy is released when burning wood in a fireplace?
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Study Notes
Common Core Programme Assessment - Science Curriculum Overview
- Developed to assess understanding of key science concepts for Junior High School students.
- Focuses on five key strands: Diversity of Matter, Cycles, Systems, Forces and Energy, and Humans and the Environment.
Diversity of Matter
- Explores properties and composition of matter, including states (solid, liquid, gas), elements, mixtures, and compounds.
Natural Cycles
- Investigates natural cycles such as the water cycle, rock cycle, and carbon cycle.
- Examines interactions between these cycles and their role in sustaining life on Earth.
Systems
- Analyzes how different components of a system interact to create functioning wholes.
- Topics covered include human body systems, ecosystems, and technological systems.
Forces and Energy
- Discusses various types of forces including gravity, electricity, and magnetism.
- Explores relationships between these forces and energy transfer/conversion concepts.
Humans and the Environment
- Examines human interactions with the environment, focusing on resource conservation, pollution, and sustainability practices.
Shadow Terminology
- Umbra: The darkest part of a shadow where sunlight is blocked; forms closer to the light source.
- Penumbra: The lighter, more defined part of the shadow; located further away from the object obstructing light.
Chemical Responses
- Lime water turns milky when carbon dioxide is introduced; the milky substance is calcium carbonate.
Ions and Atoms
- Ions are formed when atoms gain or lose electrons.
- Cations (positive) have more protons than electrons, while anions (negative) have more electrons.
Animal Digestive Systems
- Ruminants require high-fiber feed; monogastrics rely on grain-based diets for energy.
- Poultry feeds are different due to their digestive systems which are adapted for nutrient absorption.
Ascorbic Acid Functions
- Found in fresh fruits, it provides resistance to infection and prevents scurvy.
Energy Transformation
- Energy changes can include transformations from chemical energy to kinetic, mechanical, electrical, and light energies, often accompanied by heat.
Properties of States of Matter
- Ice particles have less kinetic energy compared to water particles; solids have tightly packed particles, while gases have far-apart particles with most freedom of movement.
- Liquids take the shape of their container but maintain a constant volume due to the ability of their particles to move past each other.
Heat Transfer
- Primarily occurs in metals through conduction.
- Heat transfer in gases occurs through the movement of particles.
Light Behavior
- Light travels in straight lines, a concept demonstrated through various experiments like observing shadows and using a pinhole camera.
- Refraction of light takes place when light passes through different mediums, such as prisms or water.
Principles of Light
- Reflection and refraction are critical behaviors of light; the bending of light, such as a pencil appearing bent in water, showcases these principles.
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Description
Prepare for the Ghana Junior High School Common Core Programme assessment in Science. This test covers key concepts in the Diversity of Matter, Forces, Energy, Living and Non-Living Things, and Space strands.
