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Arizona State University - Polytechnic Campus
phy 101 test
phy 101 test
Arizona State University - Polytechnic Campus
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which is the smallest particle of those listed below? molecule, neutron, proton, atom, quark
Compared with the number of atoms in a typical breath of air, about how many breaths of air are in the Earth's atmosphere?
There are far more atoms in a breath of air than in the Earth's atmosphere
Can all of the matter in the universe be listed in the periodic table?
The weight of the atom has to do with its _______________
If we doubled the magnifying power of the most powerful optical telescope in the world we would...
be able to see individual atoms
If an object moves with constant acceleration is velocity must _______
change by the same amount each secon
If a 100 lb person steps on two scales. One is 60 the other must be _____
Swing a rock overhead in a horizontal circle, and the string breaks the rock will follow a __________ path
If you exert a horizontal force of 100N on a crate and it slides along a floor at a constant rate, then the friction between the create and the floor is ________
100 N or equal and opposite
If you have snow on your boots, you can get the snow off by stamping your boots on the floor. This is according to the law of ________
Speed is always measured in terms of a unit of distance and _________
An object falls freely from rest on a planet where the acceleration due to gravity is twice as musich as it is on earth. 5 sec, d=
Toss a ball upward at 10 m/s and the time it takes to reach its highest point is about ________
If a car increases its velocity from zero to 50 km/h in 5 seconds, the average acceleration is _____________
A horse gallops a distance of 10 km in a time of 30 mins the average speed is_____
20 km and hour
While a car travels around a circular track at a constant speed it is ____________
It takes 6 seconds for a stone to hit the bottom of a mine shaft. How deep is the shaft?
about 180 m
At one instant an object in free fall is moving downward at 50 m/s. One second later it should be about ______
An airplane flies at 120 km/h in still air. It flies into a 20 km/h headwind, its ground speed is
Toss a ball upward at 30 m/s and if air drag is negligible, the ball will be in the air for _____________
The net force on an equilibrium
A ball is thrown upwards and returns to the same position. Compared to its initial speed what is the speed when it returns?
the same speed
What distinguishes velocity from speed?
When a bat hits a ball, the ball simultaneously exerts __________ force on the bat
If you toss a rock straight up in the air, at the top of its path the acceleration is _______
A fast moving massive car collides with a slow moving light car. The acceleration is greater on the ________
A fast moving massive car collides with a light slow moving car. The force of impact is __________.
the same on each car
The attraction of a person's body toward the Earth is called weight. The reaction to this force is _______
the person's body pulling on the earth
A 10 kg block with an initial velocity of 10 m/s slides 10m along a horizontal surface and come sot eh rest. It takes the block 2 seconds to stop. The stopping force on the block is about ____________
When a 25N falling object encounters 15N of air resistance, the net force on it is _______ and it accelerates _____________.
10 N and it accelerates downward at less than g
If the force remains the same while the mass of the cart decreases to half. The acceleration of the cart _________
As a falling object gains speed in falling, air drag _________`
2000kg car experiences a breaking force of 10000N and skids to a stop in 6 seconds. The speed of the car just before the breaks was ______
according to the work energy theorem, in the absence of friction, if you do 100J work on a cart you'll increase its KE by ______
A flower pot of mass M falls from the rest to the ground below to a distance H. Which is correct?
Kinetic energy of the pot when it hits the ground is proportional to H
A 4 kg ball has a momentum of 12 kg m/s. What is the ball's speed?
Which requires more work? Lifting a 25kg bag 10m vertically or a 50kg bag 5 m vertically?
A 1 kg ball dropped from a height of 2m rebounds only after 1.5m after hitting the ground. The amount of energy converted to heat is about ______
A refile of mass 2 kg is suspended by strings. The rifle fires a bullet of mass .01kg at a speed of 200 ms. The recoil velocity is about
Two identical arrows (one with twice the speed) are fired into a hay bale. The faster arrow will penetrate how many times faster?
A cannon with a long barrel fires a shell faster because the shell experiences a greater __________
Two identical gliders slide toward each other on an air track. One moves at 2 ms and the other at 1ms. If they stick together the combo is at _______
If superman throws in space a boulder with 10 times as much mass as himself, the boulder leaves his hands at 100 km/h, how fast does superman recoil?
Gravity accounts for
all of these
Why is your weight not one quarter as much as when you climb to the top of a twice as tal tree?
because you're not twice as far from the earth's center
to escape earth's gravitational field you could travel to?
two are correct
A lunar month is about 28 days, if the moon were farther from the Earth that is now, the lunar mnth would be _________
more than 28 days
Atop a cliff, a projectile is horizontally fired with an initial speed of 10 m/s. Neglecting air resistance what is the speed one second after it is fired
An object is dropped and freely falls to the ground with an acceleration of 1g. if it is thrown at an upward angle the acceleration is _________
1 g downward
Force of gravity does work on a satellite when it is in
A stone is thrown horizontally from the top of a cliff. One second after it has left your hand, its vertical distance is
5t^2 so 5 m
Inside a free falling elevator your __________
apparent weight is zero
When a star collapses to form a block hole its mass _________
is the same
If the earths radius somehow bloated to twice its size, with no change in mass, your weight as Earth's new surface would be __________
A gun with a muzzle of 100 m/s is fired horizontally from a tower. Neglecting air resistance, how far downrange with the bullet be 1 second later
Joe can jump vertically 1 meter from his skateboard when it is at rest. When the skateboard is moving horizontally, Joe can jump how much higher?
The reason a satellite such as the space shuttle remains in orbit is because of the earth's _______
If a block is set sliding on a huge frictionless plane in contact with earth it will NOT continue to move at a constant speed because ________
gravity will pull in a non perp direction as the block gets farther out on the plane
rockets that launch satellites into orbit need less thrust when fired from
if the sun collapsed to a black hole, the Earth's gravitational attraction to it would be
When you roll a ball of the edge of the table the component of velocity that does not change ________
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