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WorksheetsPhysics CP2 Midterm Review
Total questions: 100
Worksheet time: 2hrs 10mins
Which of the following is the correct equation for calculating SPEED?
s = d / t
s = d x t
s = t / d
s = d - t
When the velocity of an object does not change, what happens to its acceleration?
Nothing, it does not accelerate
It is a constant acceleration
It is a changing acceleration
A free falling objects falls under the influence of
force of air
force of gravity
force of resistance
force of star wars
A girl drops a 7 gram bowling ball and a 1gram rock from a cliff. Which will hit the ground first?
Bowling Ball
Rock
Ignoring air resistance, both will hit at the same time.
The cliff
Which of the following graphs best represents free fall motion?
Free fall takes into consideration the frictional force of air resistance.
True
False
A pumpkin is dropped from a 35 m building. What is its initial velocity?
10 m/s
35 m/s
0 m/s
5 m/s
After 60 seconds, a parachutist pulls the cord and opens her parachute.
Explain how the parachute reduces the speed of the parachutist when it is just opened.
The air resistance force decreases
The weight force decreases
The weight force increases
The air resistance force increases
A bullet is fired horizontally at a height of 1.3 meters at a velocity of 950 m/s. Assume no air resistance. How long until the bullet reaches the ground?
0.51 s
0.27 s
0.13 s
0.36 s
Here is a list of astronomical objects and their gravity:
Sun 274
Moon 1.6
Mars 3.77
Jupiter 25
Earth 9.8
Where would you weigh the least
Sun
Moon
Mars
Earth
Jupiter
100 N 230 N
<------ --------->
How do we graphically picture a vector?
line
4 lines with a dot in center
in a graph
an arrow
How do we combine vectors at right angles?
Add them
Subtract them
Use the Pythagorean theorem
Take the square root
Rockets are launched into space using jet propulsion where exhaust accelerates out from the rocket and the rocket accelerates in an opposite direction.
1st Law
2nd Law
3rd Law
A person not paying attention while skateboarding hits a rock. The skateboard stops...they don't.
1st Law
2nd Law
3rd Law
I crack an egg on the edge of a bowl. The force applied to the egg is the same as the force applied to the bowl.
1st Law
2nd Law
3rd Law
A soccer ball accelerates more than a bowling ball when thrown with the same force.
1st Law
2nd Law
3rd Law
A football player kicks the ball through the goal posts with their foot and their toes are left stinging.
1st Law
2nd Law
3rd Law
A student leaves a pencil on a desk and the pencil stays in the same spot until another student picks it up.
1st Law
2nd Law
3rd Law
My cat eyeballs the christmas tree and decides to apply all of his mass directly to the center of the tree. This force causes the tree to accelerate down towards the ground.
1st Law
2nd Law
3rd Law
When two equal forces act in opposite directions on an object, they are called ______________________.
frictional force
balanced force
centripetal force
gravitational force
When an unbalanced force acts on an object, the force ______________________.
changes the motion of the object
is cancelled by another force
does not change the motion of an object
is equal to the weight of the object
The resistance of an object to any change in its motion is called ______________________.
inertia
friction
gravity
weight
If all the vehicles brake at the same time because there is a collision ahead, which one will come to a complete stop FIRST?
