- 1. Something is _______ when it stays in a position on its own without being held there.
A) spinning B) balanced C) pull D) force
- 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) balance point B) air resistance C) counterweights 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) counterweights B) rotate C) spinning D) zoomers
- 5. Something is _______ when you use counterweights. It doesn't fall over.
A) axis B) balance point C) counterbalanced D) twirlers
- 6. You need a ________ to get something moving.
A) counterweight B) force C) balance point D) axle
- 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) spinning B) rotating C) balancing D) air resistance
- 9. A top spins on its ____________.
A) force B) counterweight C) axle D) axis
- 10. ________ is a force on earth that is caused by two things rubbing together.
A) motion B) spinning C) friction D) inertia
- 11. The _______ is a rod or shaft that wheels can be attached.
A) axle B) axis C) force D) friction
- 12. Bill Nye taught us that _______ is what makes an object stay sitting still or keep moving until a force acts upon it.
A) inertia B) counterweight C) force D) friction
- 13. To ______ means to go around and move forward or backward.
A) pull B) spin C) push D) roll
- 14. To ______ means to go around and stay in the same spot.
A) roll B) push C) spin D) pull
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