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32 Answered Questions for the topic ACT Science

Act Science Science Biology

06/18/20

Pressure of oxygen

If the partial pressure of oxygen is the same at the top of Mount Everest (elevation above sea level 8848m) as Toronto (elevation above sea level 76m), why is it so much harder (and dangerous) to... more
Act Science Science Biology

06/18/20

Asthma question

How does asthma negatively affect a person's ability to get oxygen? Discuss the change in airway and the affect on gas accessibility. How do increased levels of CO2 affect the ability of hemoglobin... more
Act Science Biology Nursing

05/31/20

Genetic disorder

For cri du chat syndrome: What treatment is available for it? Ex. gene therapy, physical therapy...etc What medical and occupational supports are available? Ex. wheelchair, medication, specialized... more
Act Science Science Chemistry

05/19/20

Please help! I cannot figure out the steps of going from mass of Hydrogen to moles of carbon in ethanol.

A sample of ethanol (C2H6O) contains 3.024g of hydrogen. How many moles of carbon are in the sample ? Molar Mass of ethanol (C2H6O)=46.07g/mol
Act Science Math Science

04/21/20

Circuit problems

1) How many 60 W light bulbs could be plugged into a 110 V circuit protected by a 15A circuit breaker?2) At $0.15 per kW•h, how much will it cost (for electricity) for a family to prepare a dinner?... more
Act Science Science Biology

03/19/20

case study Infection

Act Science Science Algebra 1

01/08/20

Science connection

Act Science Biology Chemistry

06/13/19

What does the term "ketogenic" mean in biochemistry?

Act Science Science Physics

06/13/19

What are Newton's Laws of Motion?

05/11/19

What would you say water is?

05/11/19

Who first made paper?

Act Science Math Science

05/10/19

A 1,000-kg vehicle traveling 4 m/s eastward collided with another vehicle, at which point it moved 1 m/s westward.

A 1,000-kg vehicle traveling 4 m/s eastward collided with another vehicle, at which point it moved 1 m/s westward. What was the vehicle's change in momentum? A. 1,000 kg • m/s B. 3,000 kg •... more
Act Science Science Physics

05/10/19

At t = 0 seconds, a bicyclist's velocity was 9 m/s, north. At t = 3 seconds, his velocity was 0 m/s, north.

At t = 0 seconds, a bicyclist's velocity was 9 m/s, north. At t = 3 seconds, his velocity was 0 m/s, north. What was the bicyclist's acceleration? A. -3 m/s2, north B. 0 m/s2, north C. 9... more
Act Science Science Physics

05/10/19

Which of the following is the best example of Newton's second law?

Which of the following is the best example of Newton's second law?A. A rolling ball comes to a stop because the forces of friction and gravity are acting upon it.B. The acceleration of a skydiver... more
Act Science Science Physics

05/10/19

A 57-gram tennis ball moving at 70 miles per hour is hit with a 110-gram tennis racquet moving at 60 miles per hour.  Which statement best

A 57-gram tennis ball moving at 70 miles per hour is hit with a 110-gram tennis racquet moving at 60 miles per hour. Which statement best compares the total amounts of mass and energy before and... more
Act Science Science Physics

05/10/19

A student places a magnetic compass near an insulated copper wire with electric current moving through it. He notices that the compass needle no longer points north.

22.A student places a magnetic compass near an insulated copper wire with electric current moving through it. He notices that the compass needle no longer points north.Which of the following best... more
Act Science Science Physics

05/10/19

A student calculates the potential energy of a roller coaster at the top of a hill.

16.A student calculates the potential energy of a roller coaster at the top of a hill. Then, she uses the kinetic energy equation to calculate the roller coaster's energy as it reaches the bottom... more

04/12/19

Two crates are submerged under water. The crates are identical in size, but Crate A is filled with iron and Crate B has only air inside. Which crate has a greater buoyant force acting on it?

Two crates are submerged under water. The crates are identical in size, but Crate A is filled with iron and Crate B has only air inside. Which crate has a greater buoyant force acting on it? 1)... more
Act Science Science

04/10/19

Science: Explain the difference between an object or a person free-falling without a parachute and with a parachute.

3. Explain the difference between an object or a person free-falling without a parachute and with a parachute. I'm not exactly sure how to do this one either.
Act Science Science

04/10/19

A hammer hits a nail with a force of 50 N to the right, and the nail accelerates.

(L. 8) A hammer hits a nail with a force of 50 N to the right, and the nail accelerates. Which of the following statements correctly represents Newton’s third law and the interaction between the... more
Act Science Science

04/10/19

Use the concepts of force, acceleration, and speed to explain how a parachute works.

Use the concepts of force, acceleration, and speed to explain how a parachute works. Make sure your answer explains how Newton’s laws of motion play a part.I'm not sure how to answer this. I got... more

04/06/19

What type of scientific model is this?

Consider the scenario.Scientists have developed a computer program that can be used to predict when volcanoes will erupt.What type of scientific model is this?1) practical model2) conceptual... more
Act Science Science

04/05/19

A cyclist starts at a position of 0 m and takes 3 s to move east to a position of +8 m. He then cycles west to a position of +5 m which takes an additional 2 s.

Read the scenario.A cyclist starts at a position of 0 m and takes 3 s to move east to a position of +8 m. He then cycles west to a position of +5 m which takes an additional 2 s.What is the... more
Act Science Science

04/05/19

Study the distance-time graph of an object’s motion.

Study the distance-time graph of an object’s motion.Velocity time graph starts at (0, 10) goes to (4, 20) goes to (8, 40) and then goes to (10, 10).What is the object’s velocity between 0 and 4... more
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