WorksheetsTexas Physics Units 3-5 Midterm Review
Total questions: 55
Worksheet time: 2hrs 38mins
A car travels 90 meters north. Then the car turns around and travels 40 meters south. What is the magnitude and direction of the car's resultant displacement?
direction
In this figure, what is the magnitude of the resultant displacement?
The magnitude of the resultant is equal to......
2500m
800m
50m
70m
A ball rolls off a cliff with a horizontal velocity of 8.0 m/s. The cliff is 64 m high. How far from the cliff will the ball land?
28.9 m
9.8 m
3.6 m
512 m
For projectiles launched at an angle, this is equal to zero at the top of the trajectory.
Vx
Vy
a
dy
Which will hit the ground first?
A because it is higher
A because it is moving faster
B because it is lower
B because it is moving slower
Which will hit the ground first if dropped at the same time?
The blue ball because it doesn't have to go as far.
The blue ball because it falls straight down.
The green ball because gravity accelerates it.
Both will hit the ground at the same time.
A box is dropped from an airplane. Neglecting air resistance, where will the box be in relation to the plane when the box hits the ground?
directly under the plane because it has the same Vx as the plane.
behind the plane because the box will drop straight down
in front of the plane because the plane will throw it forward
there is not enough information to tell
Which graph best represents the ball's horizontal velocity as it travels as a projectile?
Mark all of the following objects that are actually projectiles.
An object moving through the air and not touching any surfaces
A falling skydiver with an open parachute
Any object falling with no air resistance
A football kicked toward the goal posts
An airplane flying through the air
A projectile is launched horizontally from the top of a 45.2-meter high cliff and lands a distance of 17.6 meters from the base of the cliff. Determine the magnitude of the launch velocity.
5.9 m/s
3 m/s
52.8 m/s
1.9 m/s
James exerts a force on 5N on Julian's hand. What is the force that Julian's hand exerts on James'?
Greater than 5N
Less than 5N
Equal to 5 N
Julian's hand does not exert a force on James
The Earth pulls downward on a pingpong ball with a force of 1N. If this is the "action" force, what is the "reaction" force?
The ping pong ball hits the ground
The ping pong ball exerts a force of 1 N on the Earth
The ping pong ball pushes down on the earth with a force of 1N
The is no reaction force when a weight force is involved
Given the FBD, which of the following must be true?
The frictional force must be accelerating the system to the left.
The box must be accelerating to the right.
The box must be moving to the left.
The FBD is incorrectly drawn. This situation isn't possible
Which of Newton's law's is demonstrated by the following situation:
A girl on skates gets pushed backwards when she throws a ball.
The force that keeps objects on top of surfaces instead of letting them sink into the surface is known as:
normal
abnormal
static
inertia
What is the NET FORCE of this diagram?
17 N, right
17 N, left
23 N, right
12 N, up
Which of the following is true about this free-body diagram?
the forces are are balanced
the object is free-falling
the object is moving upward
the forces are unbalanced
What is the velocity formula for uniform circular motion?
A) No, if the speed is constant then the acceleration is equal to zero. B) No, an object can accelerate only if there is a net force acting on it.
C) Yes, although the speed is constant, the direction of the velocity can be changing.
D) Yes, if an object is moving it can experience acceleration
The term centripetal means
circular motion
center accepting
center seeking
center fleeing
The tangential velocity does what as you get farther from the center of a circle
Stay the same
Increase
Decrease
Depends on the mass of the object
At point P, he car hits an area of ice and loses all frictional force on it tires. Which path does the car follow on the ice?
A
B
C
D
Two riders sit at positions X and Y. Do they have different periods of rotation and why / why not?
No, because they have the same tangential velocity.
No, because they take the same amount of time to complete 1 loop.
Yes, because they have different tangential velocities.
Yes, because they have different masses probably.
The larger the mass of an object...
The smaller the force of gravity.
The larger the force of gravity.
Mass has no effect on the amount of gravity an object experiences.
As the distance between objects increases...
The smaller the force of gravity.
The larger the force of gravity.
Mass has no effect on the amount of gravity an object experiences.
How is the gravitational force between to objects related to their mass
They are directly proportional
They are inversely proportional
They do not affect each other
They are equal
How is the gravitational force between to objects related to their distance (radius apart)
They are directly proportional
They are inversely proportional
They do not affect each other
They are equal
Calculate the force of attraction between Jupiter and Saturn. Jupiter has a mass of 1.898 x 1027 kg and Saturn has a mass of 5.683 x 1026 kg. The approximate distance between them is 7.786 x 1011 m.
1.187 x 1020N
9.876 x 1019 N
2.345 x 1020 N
3.786 x 1020 N
