Key Concept Questions & Answers 6 by Jillian Abbott https://padlet.com/jabbott21/finalquestions6 Answers to the questions students have about momentum, the law of conservation of momentum, and impulse. en-us 2021-06-03 15:42:54 UTC 2021-06-03 21:11:59 UTC hello@padlet.com What factors affect an object's momentum? jabbott21 https://padlet.com/jabbott21/finalquestions6/wish/1582875105 Mass & Velocity]]> 2021-06-03 15:42:54 UTC https://padlet.com/jabbott21/finalquestions6/wish/1582875105 By momentum we mean inertia in motion? What is inertia? jabbott21 https://padlet.com/jabbott21/finalquestions6/wish/1582875107 Yes we do!
Inertia is the property of any body/object to resist changes in its state of motion. Mass is the measure of inertia.
More mass = more inertia = harder to change your motion.]]> 2021-06-03 15:42:54 UTC https://padlet.com/jabbott21/finalquestions6/wish/1582875107 Is it true that a French scientist named “Descartes” introduced momentum before Newton. Yes jabbott21 https://padlet.com/jabbott21/finalquestions6/wish/1582875117 How did humans find out about momentum? Experiments and observations.]]> 2021-06-03 15:42:54 UTC https://padlet.com/jabbott21/finalquestions6/wish/1582875117 How do i know when i need to use this equation jabbott21 https://padlet.com/jabbott21/finalquestions6/wish/1582875118 You'll be asked for the momentum. If you are given the mass and the velocity of an object, that's a big clue to calculate momentum.]]> 2021-06-03 15:42:54 UTC https://padlet.com/jabbott21/finalquestions6/wish/1582875118 What if there's multiple different velocities in the word question, how do I know which velocity to use to find the momentum? jabbott21 https://padlet.com/jabbott21/finalquestions6/wish/1582875120 Each velocity should be for just one object. So you might need to slow down, read carefully, and match what object the velocity is talking about. So for example: If it says "A 5 kg ball is rolling at 10 m/s" the velocity 10 m/s is describing the ball. ]]> 2021-06-03 15:42:54 UTC https://padlet.com/jabbott21/finalquestions6/wish/1582875120 Can momentum be heavy or light? Or maybe both. jabbott21 https://padlet.com/jabbott21/finalquestions6/wish/1582875121 Momentum isn't described that way, but weight is. :)]]> 2021-06-03 15:42:54 UTC https://padlet.com/jabbott21/finalquestions6/wish/1582875121 Are there any objects in the universe without momentum? jabbott21 https://padlet.com/jabbott21/finalquestions6/wish/1582875126 Technically no! Everything in the universe is moving all the time, so if you have mass and velocity, you have momentum. However, we can describe an object as not moving relative to something else, like saying this house is at rest relative to the earth. ]]> 2021-06-03 15:42:54 UTC https://padlet.com/jabbott21/finalquestions6/wish/1582875126 What are the units for Momentum? jabbott21 https://padlet.com/jabbott21/finalquestions6/wish/1582875130 kg * m/s]]> 2021-06-03 15:42:54 UTC https://padlet.com/jabbott21/finalquestions6/wish/1582875130 How do you find momentum? jabbott21 https://padlet.com/jabbott21/finalquestions6/wish/1582875134 p = m*v]]> 2021-06-03 15:42:54 UTC https://padlet.com/jabbott21/finalquestions6/wish/1582875134 If we have the momentum but not the mass or velocity, how will we find out the mass and velocity? jabbott21 https://padlet.com/jabbott21/finalquestions6/wish/1582875137 p = m*v
m= p/v
v= p/m]]> 2021-06-03 15:42:54 UTC https://padlet.com/jabbott21/finalquestions6/wish/1582875137 Other than making objects go faster what else can Momentum do? jabbott21 https://padlet.com/jabbott21/finalquestions6/wish/1582875141 Momentum actually doesn't make objects go faster, forces do. Forces cause acceleration]]> 2021-06-03 15:42:54 UTC https://padlet.com/jabbott21/finalquestions6/wish/1582875141 Is there anything like a force that is stronger than momentum? jabbott21 https://padlet.com/jabbott21/finalquestions6/wish/1582875145 Momentum isn't a force, but it is changed by a force. There are lots of different types of forces of varying strengths.]]> 2021-06-03 15:42:54 UTC https://padlet.com/jabbott21/finalquestions6/wish/1582875145 What factors affect how much an object’s momentum changes? jabbott21 https://padlet.com/jabbott21/finalquestions6/wish/1582875147 Force and time! 
Impulse = Force * Time = change in momentum]]> 2021-06-03 15:42:54 UTC https://padlet.com/jabbott21/finalquestions6/wish/1582875147 Why does it matter the length of time the force is being applied? jabbott21 https://padlet.com/jabbott21/finalquestions6/wish/1582875148 The impact will be very different if the time is different. Think about the sheet being a cushion and adding more time to slow down, versus when the egg hit the surface and had to slow to a stop immediately. ]]> 2021-06-03 15:42:54 UTC https://padlet.com/jabbott21/finalquestions6/wish/1582875148 When a dish falls, will the impulse be less if it lands on a carpet than if it lands on a hard floor? jabbott21 https://padlet.com/jabbott21/finalquestions6/wish/1582875153 Yes! Because of the time added to slow down and lessen the impact]]> 2021-06-03 15:42:54 UTC https://padlet.com/jabbott21/finalquestions6/wish/1582875153 What gives the push jabbott21 https://padlet.com/jabbott21/finalquestions6/wish/1582875154 Force]]> 2021-06-03 15:42:54 UTC https://padlet.com/jabbott21/finalquestions6/wish/1582875154 How does it continue moving if the force is stopped jabbott21 https://padlet.com/jabbott21/finalquestions6/wish/1582875156 Will it stop as soon as there's no force or does it keep continuing
Inertia. Natural tendency to resist changes to motion]]> 2021-06-03 15:42:54 UTC https://padlet.com/jabbott21/finalquestions6/wish/1582875156 Can impulse make momentum go lower or can impulse only make momentum go up? jabbott21 https://padlet.com/jabbott21/finalquestions6/wish/1582875158 It can go lower as well. ]]> 2021-06-03 15:42:54 UTC https://padlet.com/jabbott21/finalquestions6/wish/1582875158 How does conservation of momentum apply to collisions? jabbott21 https://padlet.com/jabbott21/finalquestions6/wish/1582875163 We can use it to figure out how fast objects were moving or are moving after a collision.]]> 2021-06-03 15:42:54 UTC https://padlet.com/jabbott21/finalquestions6/wish/1582875163 Does this relate to impulse? jabbott21 https://padlet.com/jabbott21/finalquestions6/wish/1582875164 yes! Impulse causes a change in momentum for objects.]]> 2021-06-03 15:42:54 UTC https://padlet.com/jabbott21/finalquestions6/wish/1582875164 How do I know when I need to use the law of conservation of momentum? jabbott21 https://padlet.com/jabbott21/finalquestions6/wish/1582875171 Big clues are when they say "before the collision" and "after the collision"]]> 2021-06-03 15:42:54 UTC https://padlet.com/jabbott21/finalquestions6/wish/1582875171 Why do I have to do extra math if the question gives us the momentum before the collision which is gonna equal the momentum after the collision which is what we're looking for? jabbott21 https://padlet.com/jabbott21/finalquestions6/wish/1582875173 Sometimes we want to know how fast the objects are moving, so we need to do a little bit of extra math.]]> 2021-06-03 15:42:54 UTC https://padlet.com/jabbott21/finalquestions6/wish/1582875173 Can momentum become bigger and bigger if more objects come in? jabbott21 https://padlet.com/jabbott21/finalquestions6/wish/1582875174 Yes! More objects in the system can transfer more momentum.]]> 2021-06-03 15:42:54 UTC https://padlet.com/jabbott21/finalquestions6/wish/1582875174 What has the biggest momentum? jabbott21 https://padlet.com/jabbott21/finalquestions6/wish/1583638542 2021-06-03 20:25:06 UTC https://padlet.com/jabbott21/finalquestions6/wish/1583638542 What's the difference between motion and momentum? jabbott21 https://padlet.com/jabbott21/finalquestions6/wish/1583645661 2021-06-03 20:29:13 UTC https://padlet.com/jabbott21/finalquestions6/wish/1583645661