Combining Machines

CLOCKWORK KEEP · GEARLING

Combining Machines

Machine Heart Vault

Learn with Gearling, then use your clues in the adventure. Pause whenever you need time to read or think.

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Train more: lesson transcript and free resources

Gearling — Combining Machines Machine Heart Vault

Hi!

I'm Gearling.

Welcome to Machine Heart Vault!

Will you help me investigate combining machines?

The Grumblies have mixed up our clues.

Let's check the evidence!

Compound machines combine simple mechanisms.

Identify what each part does before deciding how to improve a design.

Which mechanisms are in our model?

  • A. Only a pulley
  • B. Wheel and axle, ramp and lever
  • C. Only a new seventh machine

The answer is B: Wheel and axle, ramp and lever

Our model combines a wheel-and-axle cart, a ramp and a lever latch.

A tested stronger latch holds the cargo when the original fails.

Improve that part rather than claiming the entire machine creates energy.

That clue helps us make sense of this place.

Criteria and constraints guide testing.

A useful change should address observed performance while respecting available materials

and space.

What failed in the supplied test?

  • A. The original latch
  • B. Every wheel by definition
  • C. The map legend

The answer is A: The original latch

Our model combines a wheel-and-axle cart, a ramp and a lever latch.

A tested stronger latch holds the cargo when the original fails.

Improve that part rather than claiming the entire machine creates energy.

Hmm...

how does that connect to our first clue?

Our model combines a wheel-and-axle cart, a ramp and a lever latch.

A tested stronger latch holds the cargo when the original fails.

Improve that part rather than claiming the entire machine creates energy.

Which improvement has supporting evidence?

  • A. A decorative new label
  • B. Changing the label only
  • C. The tested stronger latch

The answer is C: The tested stronger latch

Our model combines a wheel-and-axle cart, a ramp and a lever latch.

A tested stronger latch holds the cargo when the original fails.

Improve that part rather than claiming the entire machine creates energy.

Nice investigating!

You've been following the evidence.

Let's bring our clues together before the adventure.

Compound machines combine simple mechanisms.

Criteria and constraints guide testing.

Our model combines a wheel-and-axle cart, a ramp and a lever latch.

You're ready to explore Machine Heart Vault with me!

Choose TRAIN MORE if you'd like another look at the clues.

Choose START ADVENTURE when you're ready.

I'll be right here!

Or choose BACK TO MAP.

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