physics
posted by Heath .
I need some help and I was wondering if you guys could give me some hints and stuff.
thanks a lot!!
Question 1
A force causes a certain acceleration. What acceleration would half of the original force cause?
a. The same amount
b. 1/2 times
c. 4 times
d. 2 times
Question 2
How does the forward force on a car compare with the resistive forces when the car maintains a constant speed and direction?
a. The forward force is less than the sum of the resistive forces
b. The forward force is greater than the sum of the resistive forces
c. The forward force equals the sum of the resistive forces
d. There is no forward force on the car
Question 3
The engine of a rocket in space, far from anywhere, applies a continual force to push the rocket along. When the engine stops the rocket will
a. stop accelerating.
b. continue accelerating
c. slow down
d. stop moving
Question 4
The force of gravity on the moon is 1/6 of the value on the Earth. Thus the mass of an object on the moon is
a. not related to its mass on Earth
b. exactly the same as its mass on Earth
c. 6 times more than on the Earth
d. 1/6 as much as its mass on Earth
Question 5
A train has a head on collision with a mosquito. The force causes an acceleration of the train which is
a. larger than that of the mosquito
b. smaller than that of the mosquito
c. equal to that of the mosquito
d. Need more information to answer
Question 6
Which of the following statements is true?
An object's acceleration is always in the same direction as its velocity (its direction of motion).
An object's acceleration is always in the same direction as the net force on it.
a. Neither
b. Only II
c. Both
d. Only I
I will be happy to critique your thinking.
This again....thanks....no thanks...I needed help with the questions....
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