Pushes, Pulls & Balanced Forces

VELOCITY VALLEY · ZOOMLING

Pushes, Pulls & Balanced Forces

Starting Line Station

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Zoomling — Pushes, Pulls & Balanced Forces Starting Line Station

Hi!

I'm Zoomling.

Welcome to Starting Line Station!

Will you help me investigate pushes, pulls & balanced forces?

The Grumblies have mixed up our clues.

Let's check the evidence!

A force is a push or pull with strength and direction.

Forces can act together on an object.

What is a force?

  • A. A push or pull
  • B. Only an object's color
  • C. Only a location

The answer is A: A push or pull

A force is a push or pull with strength and direction.

Forces can act together on an object.

That clue helps us make sense of this place.

Balanced forces do not change motion.

An unbalanced overall force can change speed or direction;

an object already moving can continue under balanced forces.

Do balanced forces necessarily stop a moving object?

  • A. Yes
  • B. Only if moving north
  • C. No

The answer is C: No

Balanced forces do not change motion.

An unbalanced overall force can change speed or direction;

an object already moving can continue under balanced forces.

Hmm...

how does that connect to our first clue?

Our cart starts at rest.

Equal opposite pushes balance;

a stronger push to the right produces an overall rightward

force in this simplified model.

Which resting-cart case has an overall force?

  • A. No push at all
  • B. The stronger rightward push
  • C. Equal opposite pushes

The answer is B: The stronger rightward push

Our cart starts at rest.

Equal opposite pushes balance;

a stronger push to the right produces an overall rightward

force in this simplified model.

Nice investigating!

You've been following the evidence.

Let's bring our clues together before the adventure.

A force is a push or pull with strength and direction.

Balanced forces do not change motion.

Our cart starts at rest.

You're ready to explore Starting Line Station with me!

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

Choose START ADVENTURE when you're ready.

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