Reference no: EM131410404
1. A car that increases its speed from 20 km/h to 100 km/h undergoes ____________________ acceleration.
2. It usually takes more force to start an object sliding than it does to keep an object sliding because static friction is usually ____________________ than sliding friction.
3. As an object's temperature increases, the ____________________ at which it radiates energy increases.
4. Using a hammer to drive a nail, it is the reaction force that brings the motion of the hammer to a stop but the _______________ that drives the nail into the wood.
5. The region where a magnet's force is strongest is at the_________________________.
6. When a person plucks a guitar string, the number of half wavelengths that fit into the length of the string determines the ____________________ of the sound produced.
7. The energy source used to produce most of the electrical energy in the United States is ____________________.
8. The magnetic field lines of a bar magnet begin near the magnet's ____________________.
9. In a closed system, the loss of momentum of one object ____________________ the gain in momentum of another object.
10. The law of reflection states that the angle of reflection is equal to the angle of ____________________.
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