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PS_Test#2 Test

Enter the letter for the matching Answer
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1.
A ball is swinging in a circle on a string when the string length is doubled. At the same velocity, the force on the string will be...
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2.
You are outside a store,moving a loaded grocery cart down the street on a very steep hill.You are able to pull back on the handle&keep the cart moving down the street in a straight line & at a constant speed. The forces on the cart are...
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3.
A car moving at 60km/h comes to a stop in 10s when the driver slams on the brakes. In this situation, what is the final speed?
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4.
2.) "...". Neglecting friction doubling the mass would have what effect on the resulting final speed if you used the same force for the same length of time? The new final speed would be...
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5.
Newton's first law of motion describes...
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6.
A quantity of 5m/s^2 is a measure of...
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7.
If a ball swinging in a circle on a string is moved twice as fast, the force on the string will be...
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8.
From a bridge, a ball is thrown straight up at the same time a ball is thrown straight down with the same initial speed. Neglecting air resistance, which ball will have a greater speed when it hits the ground?
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9.
An automobile has how many different devices that can cause it to undergo acceleration?
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10.
Again consider the small sports car and large SUV that collided head on and stuck together without sliding. Which vehicle must have experienced the larger deceleration during the collision?
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11.
Newton's law of gravitation tells us that...
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12.
Suppose the mass of a moving scooter is doubled and its velocity is also doubled. The resulting momentum is...
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13.
An orbiting satellite is moved from 10,000 to 30,000 km from Earth. This will result in what change in the gravitational attracting between Earth and the satellite?
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14.
In free fall, an object is seen to have a(n)...
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15.
How fast an object is moving in a particular direction is described by...
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16.
Doubling the distance between the center of an orbiting satellite and the center of Earth will result in what change in the gravitational attraction of Earth for the satellite?
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17.
A straight-line distance covered during a certain amount of time describes an object's...
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18.
A ball rolling across the floor slows to a stop because...
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19.
Ignoring air resistance, an object falling near the surface of Earth has an acceleration that is...
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20.
Newton's third law of motion states that forces occur in matched pairs that act in opposite directions between two different bodies. This happens...
A.
constant acceleration
B.
Both balls would have the same speed
C.
velocity
D.
acceleration
E.
the tendency of a moving or stationary object to resists any change in its state of motion
F.
speed
G.
balanced, with a net force of zero
H.
three or more
I.
every time two bodies interact
J.
quadrupled
K.
one-half
L.
one-half as much
M.
four times as great
N.
0km/h
O.
constant
P.
The small sports car
Q.
One-fourth as much
R.
One-ninth as much
S.
there is a net force acting on it
T.
every object in the universe is attracted to every other object in the universe
Type the Answer that corresponds to the displayed Question.
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21.
A gun is aimed horizontally at the center of an apple hanging from a tree. The instant the gun is fired, the apple falls and the bullet...
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22.
Which metric unit is used to express a measure of weight?
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23.
A measure of how fast your speed is changing as you travel to campus is a measure of...
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24.
A measure of the force of gravity acting on an object is called...
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25.
Ignoring air resistance, an object falling toward the surface of Earth has a velocity that is...
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26.
After being released, a ball thrown straight up from a bridge will have an acceleration of...
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27.
Mass is measured in kilograms (kg), which is a measure of...
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28.
A car moving at 60km/h comes to a stop in 10s when the driver slams on the brakes. In this situation, what does 60 km/h represent?
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29.
1.) You are@rest with a grocery cart@the supermarket when you see a checkout line open&apply a force to the cart for a short time&acquire a speed. Neglecting friction, how long would you have to push with 1/2 the force to acquire the same final speed?
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30.
If you double the unbalanced force on an object of a given mass, the acceleration will be...

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