Which force prevents you from sinking into the ground?

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Prepare for the Year 10 Force and Motion Test. Utilize flashcards and multiple-choice questions with clear hints and explanations to ensure success. Equip yourself for excellence on your exam!

Multiple Choice

Which force prevents you from sinking into the ground?

Explanation:
When you stand on the ground, the surface pushes back on you with an upward contact force. This is the normal force, often called the support force. It acts perpendicular to the ground and balances your weight pulling you downward. Because these two forces cancel, you don’t sink into the ground. Gravity pulls you down, but the ground’s upward push prevents sinking. Buoyancy only comes into play in fluids, not on a solid surface. Friction acts along the surface and helps with sliding, not vertical support, so it doesn’t stop you from sinking.

When you stand on the ground, the surface pushes back on you with an upward contact force. This is the normal force, often called the support force. It acts perpendicular to the ground and balances your weight pulling you downward. Because these two forces cancel, you don’t sink into the ground.

Gravity pulls you down, but the ground’s upward push prevents sinking. Buoyancy only comes into play in fluids, not on a solid surface. Friction acts along the surface and helps with sliding, not vertical support, so it doesn’t stop you from sinking.

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