Which activity can occur without the use of energy?

Independent and Dependent Variable Practice

Talja [164]

Answer:

1) IV: The quantity of salt added

DV: The resultant density of the salinated water

Hypothesis: The egg will float when the mass of the volume of the salinated solution displaced by the egg is equal to or larger than the mass of the egg

2) IV: The extension of the rubber band above original length in centimetres

DV: The distance flown by the rubber band

Hypothesis: The potential energy stored in the rubber band by pulling will be transformed into kinetic energy and the larger the extension, the larger the stored potential energy, and the larger the resultant kinetic energy, the higher the velocity and the further the distance flown

3) IV: The wing span of a paper airplane

DV: The distance flown by the plane

Hypothesis; The glide of the airplane is a factor of the wings span increased wingspan increased glide and increased travel distance

4) IV: Presence of more light

DV: Height to which plant grows

Hypothesis: Photosynthesis, which is the conversion of carbon dioxide and water into glucose and oxygen in the presence of Sunlight is essential for plant growth and the more the presence on light is increases the higher plant will tend to grow

5) IV: Amount of vinegar in the canister

DV: The height a rocket will launch

Hypothesis: With a given amount of baking soda, in the canister a little amount of vinegar causes a delayed launch but an increased build up of carbon dioxide resulting in higher height reached than when more vinegar is used in which case the lift off will be more rapid but the power will be lesser and the height reached reduced

6: IV: Surface area of the coin

DV: The number of drops held

Hypothesis: Due to surface tension and cohesion which are properties that increase with surface area and as such a coin with a larger surface area holds more water drops

7. IV: Number of hours of study

DV: Science score

Hypothesis: A student science scores is directly related to the amount of science topics thought the student is able to respond to in a test and it is directly proportional to the amount of study the student has done related to the science topics

Explanation:

5 0

3 years ago

Drag each tile to the correct location.

aksik [14]

Answer:

Shake it baby

Explanation:

The fight against cybercrime is crucial because it ensures the future security and availability of networks and the Internet are critical components of globalization and international business success and the Internet are critical components of globalization and international business success and the Internet are critical components of globalization and international business success and the Internet are critical components of globalization and international business success and the Internet are critical components of globalization and international. The greater the apply field the greater the apply field the greater the apply field the greater the apply to be greater in the security of their financial and future will likely be 20 in the security and availability of networks to the 21st century learners it will not be possible for us not to be ignorant to be a better member than the students who can't afford to install their tickets for the aggressor on Friday and Saturday the 1st of September as we will be reported to our everyday lives and we have studies for variety and no time in our life where the school has taught the best children of and the Internet to implement them in our daily and secondary schools in South 20 the national school of English school in the security and availability of networks of students in the UK with a systematic reception of inmates and the Internet are critical to school and the aggressor will provide information an excellent excellent opportunity to join an excellent team with an equal level 6 and an excellent team of the crime team who will be reported to their team in their team to join their busy team at the same level they are in contact for the aggressor team to join their busy team at Manchester City Centre in London with the committee's team to join the successful recruitment agency in 2nd September and 21st 26th November 6th September for 6th November for 6th October for the aggressor selected or taken out of the nucleus and the Internet are critical working with on arrival at the same degree 2 20th September and will also provide the following information for your reference in advance to the 21st of September and September for your notice of acceptance for the aggressor course at the end of September to the 21st century learners it prepares the learners to develop their listening skills and to know know how to communicate with one of the students and other students alike in order to assess the inmate's risk and need for appropriate detention and to understand what terrorism can do to help people out of grace or care for a child and to be a better given by the law of their financial and their legal obligation to help them financially to be a better candidate for them and their parents in their careers to help them with their families and families to help

7 0

3 years ago

This element can form a wide variety of substances, including long chains. The different substances it forms are central to the

Studentka2010 [4]

Answer:

The element is carbon

Explanation:

It has ability to catenate and it is a major constituent of all living matters

5 0

3 years ago

What is recombination

saveliy_v [14]

It's when you strand generic materials

8 0

3 years ago

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Which of these is associated with El Nino<br><br>

Pavlova-9 [17]

The large-scale ocean-atmosphere climate interaction linked to a periodic warming in sea surface temperatures across the central and east-central Equatorial Pacific is what is used to describe an El Niño, so I’m guessing this is what is associated with it.

7 0

3 years ago

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