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Questions and Answers
Which force keeps boats from sinking?
Which force keeps boats from sinking?
- Buoyancy (correct)
- Inertia
- Friction
- Gravity
What provides thrust to make a boat move?
What provides thrust to make a boat move?
- Engines, sails, or oars (correct)
- Buoyancy
- Gravity
- Drag
What causes drag that slows down a boat?
What causes drag that slows down a boat?
- Thrust
- Engines
- Buoyancy
- Water, air, or boat's own weight (correct)
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Study Notes
- Boats move through water using different forces.
- Buoyancy is the force that keeps boats from sinking.
- Gravity pulls the boat down towards the water, but buoyancy force pushes it up.
- To make a boat move, we need thrust.
- Boats can get thrust from engines, sails, or oars.
- The bigger the thrust, the faster the boat will go.
- When a boat moves through water, it experiences drag, which slows it down.
- Drag can come from the water, air, or boat's own weight.
- We want to reduce drag to make the boat go faster.
- The balance between buoyancy and gravity keeps the boat afloat.
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