Please check my answers.

Please help! And no absurd answers please, I asked this a bit ago and I got super odd answers aha

Does mass influence how quickly an object falls?

This question is about the Earth's atmosphere and light/sound waves.

A car moves at 45 kilometers per hour.

Which option describes if the given value is speed or velocity?

1 velocity, because there is no specific direction
2 speed, because there is no specific direction
3 velocity, because there is a mention of time
4 speed, because there is a mention of time

Mintu wants to increase the heat transfer between a metal iron and another piece of metal he wants to shape. He decides to increase the time the two metals are in contact, use a larger metal iron, and use a new metal material with a higher specific heat.

Where is Mintu's error?

Mintu should have decreased the size of the metal iron.
Mintu should have decreased the time he touches the two metals.
Mintu should have chosen a material with a lower specific heat.
Mintu should have chosen a material the same temperature as the iron.

20 points

Which of these describes the part of the water cycle happening at D

Which refers to the amount of heat required to change the temperature of 1 gram of a substance by 1°C and is related to the chemical composition of the substance?

Thermal energy
Specific heat
Activation heat
Boiling point

30 points

A magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them. Make your claim and support it with evidence/reasoning. Write using complete sentences. 1st Law - Law of Inertia

2nd Law - Law of Force and Acceleration

3rd Law - Law of Action-Reaction

Which scientific law describes the relationship between action and reaction force pairs?

Newton's third law of motion
Kepler's law of planetary motion
Law of gravitation
Law of conservation of mass

11 8/9 + 4 1/3 rounded to the nearest whole number

Explain the relationship between wavelength and frequency in the electromagnetic spectrum.

Which of the following was Aristotle responsible for? (HELP ASAP PLEASE)

A: Ship Shaker
B: Scientific method
C: Calculus
D: Pendulum clocks

For this situation to demonstrate a balanced force, how much force must Omar apply? (In the picture, Sam is pushing a box to the right with a force of 10N, and Omar is pushing the box to the left with a force of _____ N)



Question 8 options:

10 N


20 N


100 N


0 N

Had to repost got deleted


Fill in the blank.

I gatta _____ ___ walk and _____ ___ mouth
- Megan thee stallion

Please help I don’t know the answer, I’m horrible in science

This chart lists four examples of two objects that are in contact.

A 3-column table with 4 rows. The first column has entries Example 1, Example 2, Example 3, Example 4. The second column labeled Object 1 has entries fire, a metal at 80 degrees Celsius, the cool ocean, a tool with a lot of thermal energy. The third column labeled Object 2 has entries air, a metal at 12 degrees Celsius, the warm air, a material with little thermal energy.

Which statement accurately describes the flow of heat in each example?

Heat will flow from Object 1 to Object 2 in examples 2 and 4, and heat will flow from Object 2 to Object 1 in examples 1 and 3.
Heat will flow from Object 1 to Object 2 in examples 1 and 3, and heat will flow from Object 2 to Object 1 in examples 2 and 4.
Heat will flow from Object 1 to Object 2 in Example 3, and heat will flow from Object 2 to Object 1 in examples 1, 2, and 4.
Heat will flow from Object 1 to Object 2 in examples 1, 2, and 4, and heat will flow from Object 2 to Object 1 in Example 3.


30 points

Identify at least one example each of absorption, transmission, reflection, and refraction of waves in this photograph.

The distance versus time graph for Object A and Object B are shown.

{IMAGE} A graph titles Distance vs Time. A curved line is drawn through point 10 on y axis and this line is labeled Object A. The graph for Object B is a straight slanting line passing through the origin

Which statement best describes the motion of Object A and Object B?

Both objects move with variable speed.
Both objects move with constant speed.
Object A moves with constant speed and Object B moves with variable speed.
Object A moves with variable speed and Object B moves with constant speed.

The image below shows a large, warm ocean next to a continent with a coastal mountain range.
If an air mass formed at the location labeled “Air Mass Formation”, what properties would the air mass most likely have? Choose one answer below.

Parallel Circuit

Series Circuit

Electrical Current

Electrical Discharge

Static Electricity

Answers:

A Circuit that contains more than one path for current flow.

Electric Charge at rest;generally produced by friction or introduction.

The Loss of static electricity as charges move off an object.

A Flow Of Charged Particles From One Point To Another.

The speed and direction of motion is ?
A. Acceleration
B. Velocity
C. Momentum
D. Deceleration

Based on the pattern of the P and S waves, what type of material is this planet made of?

(Tried to pick a subject but I could not find Science.)

Which of the following choices represent the correct directional arrow needed for the boxes?

The distance versus time graph for Object A and Object B are shown.


[IMAGE] A graph titles Distance vs Time. A curved line is drawn through point 10 on y axis and this line is labeled Object A. The graph for Object B is a straight slanting line passing through the origin


Which statement best describes the motion of Object A and Object B?


Both objects move with variable speed.

Both objects move with constant speed.

Object A moves with constant speed and Object B moves with variable speed.

Object A moves with variable speed and Object B moves with constant speed.

Periodic table of elements metals and nonmetals questions

A student is getting ready to go on a bike ride, but her bike’s back tire is flat! She connects a pump to the valve and adds air to the tire until it is fully inflated and ready to ride.

After the addition of air to the tire, the air pressure inside the tire is now __________ the air pressure outside the tire.

Fill in the blank by choosing one answer below.

View the photo below, read the passage, and answer the question.



The arcs in the photo are background galaxies that were distorted and magnified by a giant cluster of dark matter. As the light leaves its source, the gravity of the cluster of dark matter bends that light, creating the swoops in the image above.

This passage best supports which conclusion about dark matter?

a. Dark matter does not give off light, but scientists can see the reflection in stars around it
b. Dark matter is created from clouds of dust and gas scattered throughout the universe
c. Dark matter has a significant impact on the stellar life cycle
d. Dark matter does not give off light, so it can only be detected by observing the effects of gravity on visible objects nearby

Recall that if the colliding objects have hard surfaces, the collision is elastic. Based on this description, which bumper design is more likely to result in an elastic collision? Predict how this bumper design will change the force that car 2 experiences during the collision.

If a machine decreases the distance an object moves, it must also _____.
increase the object's acceleration
decrease the force used to move the object
decrease the object's mass
increase the force used to move the object

someone made a copy of an analog wave in a digital wave compare the copies with the original waves and explain which type of waves more reliable way to encode code to transmit information