153 Answered Questions for the topic ACT Science
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 •...
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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...
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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...
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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...
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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...
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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...
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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)...
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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.
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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...
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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...
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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...
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Act Science Science
04/06/19
Which type of scientific reasoning is being described in the situation?
Consider the situation.Scientists discovered a sedimentary layer of earth with high amounts of the element iridium. This layer was laid down about the time at which the dinosaurs went extinct....
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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...
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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...
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04/05/19
Which type of scientific reasoning is being described in the situation?
Consider the situation.Scientists discovered a sedimentary layer of earth with high amounts of the element iridium. This layer was laid down about the time at which the dinosaurs went extinct....
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Act Science
03/18/19
Can someone explain Kinetic and Potential Energy in SHM? I'm prepping for the ACT
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03/18/19
Does anyone have practice advice as well as advice for the best resources for the ACT?
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