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