# Physics - Forces - Set 1

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• 3.1
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• 0.6
• 1.7
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## 2. Someone puts a brick in a liquid. They use a Newton Meter to measure things. Upthrust makes the brick (and any other object)...

• Float up to the surface of the liquid.
• Appear to weigh less, but it doesn't really. It's weight stays the same.
• Balance with the forces around it.
• Create unbalanced forces, so the brick (and any other object) sinks.
• Weigh less. Upthrust changes the weight.

## 3. A ship wants to sail to another country. What needs to happen for it to do that?

• There needs to be more gravity than upthrust, or the ship won't move properly.
• There shouldn't be any upthrust or gravity.
• There needs to be unbalanced forces, or the ship won't work properly.
• Upthrust and gravity need to be balanced.
• There needs to be more upthrust than gravity, or the ship will sink.

## 4. How do you work out distance?

• Average Speed
• Speed x Time
• Time ÷ Speed
• Speed ÷ Time
• Average Time

## 5. Which liquid has more upthrust?

• Cooking oil
• Orange juice
• Water
• Wallpaper paste
• Washing-up liquid