- 1. Something is _______ when it stays in a position on its own without being held there.
A) pull B) force C) spinning D) balanced
- 2. A ______ means that something doesn't fall over. When you give it a little push, it wobbles back and forth, but it doesn't fall.
A) air resistance B) counterweights C) balance point D) stable position
- 3. The part that an object balances on is called the _______.
A) force B) counterbalanced C) stable position D) balance point
- 4. We learned to place the _______ below the balance point to get something to balance.
A) spinning B) counterweights C) rotate D) zoomers
- 5. Something is _______ when you use counterweights. It doesn't fall over.
A) axis B) counterbalanced C) balance point D) twirlers
- 6. You need a ________ to get something moving.
A) counterweight B) axle C) force D) balance point
- 7. A force can be a _______ or a _______.
A) wheel, axle B) push, pull C) balance point, counterbalance D) spin, rotate
- 8. Twirlers work because air pushes against the wings. This is called _________
A) rotating B) spinning C) air resistance D) balancing
- 9. A top spins on its ____________.
A) axis B) axle C) force D) counterweight
- 10. ________ is a force on earth that is caused by two things rubbing together.
A) motion B) inertia C) spinning D) friction
- 11. The _______ is a rod or shaft that wheels can be attached.
A) axis B) friction C) force D) axle
- 12. Bill Nye taught us that _______ is what makes an object stay sitting still or keep moving until a force acts upon it.
A) force B) friction C) counterweight D) inertia
- 13. To ______ means to go around and move forward or backward.
A) push B) pull C) roll D) spin
- 14. To ______ means to go around and stay in the same spot.
A) spin B) pull C) roll D) push
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