1.The minimum number of forces that makes up an interaction is
A) One
B) Two
C) At least four.
2. When you hit a nail with a hammer there is a force
A) on the nail but not the hammer.
B) on the hammer but not the nail
C) on the both the nail and the hammer but the force on the nail is greater
D) Of equal magnitude on both the nail and the hammer
3. Nellie Newton holds an apple in her hand. If the action is the earth pulling on the apple then the reaction is
A) her hand pushing up on the apple
B) her hand providing a normal force on the apple
C) both of these
D) Neither of these
4. Bronco the skydiver falls towards the earth. The attraction of the earth on bronco pulls him down. The reaction to this force is
A) Bronco finally pushing against the earth's surface
B) the earth's surface finally pushing against Bronco.
C) Bronco pull in up on the earth
D) none of these.
5. A rocket is able to accelerate in the vacuum of space when it fires its engines. The force that propels the rocket is the force.
A) by the exhaust gases on the rocket
B) of the rocket on the exhaust gases.
C) neither of these.
6.Your friend says that the heavy weight champion of the world cannot exert a force of 50 N on a piece of tissue paper with his best punch: The tissue paper is held in midair,no wall. no tricks.
A) You agree that it can't be done
B) You have reservations about this claim.
C) You disagree for a good punch easily delivers this much force.
7. A Karate chop delivers a blow of 3000 N to a board that breaks. The force that acts on the hand during this feat is
A) less than 3000N.
B)3000 N
C) More than 3000 N
D) there is no way to say with certainty.
8. an unfortunate bug splatters against the windshield of a moving car. Compared to the deceleration of the car, the deceleration of the bug is
A) Larger.
B) Smaller
C) the same.
A) One
B) Two
C) At least four.
2. When you hit a nail with a hammer there is a force
A) on the nail but not the hammer.
B) on the hammer but not the nail
C) on the both the nail and the hammer but the force on the nail is greater
D) Of equal magnitude on both the nail and the hammer
3. Nellie Newton holds an apple in her hand. If the action is the earth pulling on the apple then the reaction is
A) her hand pushing up on the apple
B) her hand providing a normal force on the apple
C) both of these
D) Neither of these
4. Bronco the skydiver falls towards the earth. The attraction of the earth on bronco pulls him down. The reaction to this force is
A) Bronco finally pushing against the earth's surface
B) the earth's surface finally pushing against Bronco.
C) Bronco pull in up on the earth
D) none of these.
5. A rocket is able to accelerate in the vacuum of space when it fires its engines. The force that propels the rocket is the force.
A) by the exhaust gases on the rocket
B) of the rocket on the exhaust gases.
C) neither of these.
6.Your friend says that the heavy weight champion of the world cannot exert a force of 50 N on a piece of tissue paper with his best punch: The tissue paper is held in midair,no wall. no tricks.
A) You agree that it can't be done
B) You have reservations about this claim.
C) You disagree for a good punch easily delivers this much force.
7. A Karate chop delivers a blow of 3000 N to a board that breaks. The force that acts on the hand during this feat is
A) less than 3000N.
B)3000 N
C) More than 3000 N
D) there is no way to say with certainty.
8. an unfortunate bug splatters against the windshield of a moving car. Compared to the deceleration of the car, the deceleration of the bug is
A) Larger.
B) Smaller
C) the same.
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