Unit 04 - Practice Test
star
star
star
star
star
Last updated about 3 years ago
34 questions
1
The more mass and object has, the ___________________ inertia it has
The more mass and object has, the ___________________ inertia it has
2
A 2-kg object is moving horizontally with a speed of 4 m/s.How much net force is required to keep the object moving at this speed and in this direction?
A 2-kg object is moving horizontally with a speed of 4 m/s.
How much net force is required to keep the object moving at this speed and in this direction?
6
In the helium balloon inside the car example, what was the conclusion the class reached as to why this did not violate the first law?
https://www.youtube.com/watch?v=XXpURFYgR2E
In the helium balloon inside the car example, what was the conclusion the class reached as to why this did not violate the first law?
https://www.youtube.com/watch?v=XXpURFYgR2E
4
One Newton of Force is equal to ______________
One Newton of Force is equal to ______________
4
What is the gravitational force of 1kg?
What is the gravitational force of 1kg?
6
A football is moving upward and rightward towards the peak of its trajectory. Ignore the air resistance. (Grading on forces and magnitudes)
A football is moving upward and rightward towards the peak of its trajectory. Ignore the air resistance. (Grading on forces and magnitudes)
6
A rightward force is applied to a dresser to accelerate it to the right across the bedroom floor. Ignore the air resistance. (Grading on forces and magnitudes)
A rightward force is applied to a dresser to accelerate it to the right across the bedroom floor. Ignore the air resistance. (Grading on forces and magnitudes)
4
The _______ is the vector _______ of all the _______ that act upon an object.
4
Why does constant velocity indicate NO net force?
Why does constant velocity indicate NO net force?
4
What is the net force on the object?
What is the net force on the object?
4
Explain what is happening to the object using the word 'acceleration'.
Explain what is happening to the object using the word 'acceleration'.
4
In the situation above, the force of letter D must be _______ Newtons, and letter E must be pulling with a force of _______ Newtons.
5
The _______ of an object as produced by a net force is _______ proportional to the _______ of the net force, in the _______ direction as the net force, and _______ proportional to the mass of the object.
4
Doubling of the net force results in a __________ of the acceleration (if the mass is held constant).
4
A doubling of the mass results in a __________ of the acceleration (if force is held constant).
4
Fgrav=
Fgrav=
4
Fnorm=
Fnorm=
4
Fapp=
Fapp=
4
Fnet=
Fnet=
4
Fgrav=
Fgrav=
4
Fnorm=
Fnorm=
4
Fnet=
Fnet=
4
Ffrict=
Ffrict=
4
'mu' =
'mu' =
2
Explain what is meant by 'terminal velocity.
Explain what is meant by 'terminal velocity.
4
For every action, there is an _______ and _______ reaction.
4
Momentum can be defined as " _______ in _______ "
4
What is the formula for momentum?
What is the formula for momentum?
2
In an isolated system, the total momentum of the two objects before the collision is __________ the total momentum of the two objects after the collision.
4
Match the inelastic collision situation with the outcome.
Match the inelastic collision situation with the outcome.
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
| arrow_right_alt | 0 m/s | |
| arrow_right_alt | 3 m/s | |
| arrow_right_alt | - 0.7 m/s | |
| arrow_right_alt | 0.2 m/s | |
| arrow_right_alt | 4.8 m/s |
4
What is the missing value for Force?
What is the missing value for Force?
4
What is the missing value for Impulse?
What is the missing value for Impulse?
4
What is the missing value for Momentum Change?
What is the missing value for Momentum Change?
4
The more momentum that an object has, the harder that it is to stop. Thus, it would require a _______ amount of force or a longer amount of _______ or both to bring such an object to a halt.