Activity 1 - The kinetic energy of an object is proportional to the mass and velocity of the object. Larger and faster asteroids would collide with earth with more force. Upon collision, the force applied by the asteroid is equal to the force Earth exerts back onto the asteroid., Activity 2 - We started asking questions about NEOs (Near Earth Objects) that we would need to know to support the claim that "NEOs are large enough to knock Earth off its axis.", Activity 3 - NEO data was examined and interpreted. You were to look for patterns and provide data to support your claim. This was different for each of you but we did agree there was a randomness to the collisions., Activity 4 - After reading the passage and looking at the video you were to discuss energy conversions if there was an asteroid impact. We diagramed how the KE turned into thermal energy as it entered earth's atmosphere (friction) and how the KE was converted to ME (mechanical energy) as it peels away Earth's crust and breaks it into giant chunks., Activity 5 - Action and Reaction in a car collision with a pole was depicted in image 3; the KE of the bowling ball should point to the pins; and, in Moving Along, the more mass the ball had, the further it would push the cup since they were all going at same speed., Activity 6 - We skipped this (similar to tests we did in past). We discussed that a lighter marble would roll further than a more massive one on a ramp. Also, more massive objects would push objects they collide with further if at the same speed as less massive ones because they would have more force., Activity 7 - We read about equal and opposite reactions., Activity 8 - We selected Graph 2 to show collision data which applies to Newton's Third Law (equal and opposite reaction)., Activities 9 and 10 - We did an online interactive and created a chart for it and reflected on it. We also read the passage that talked about how much KE in a collision is transferred between objects but also converts to other forms of energy such as light, sound, heat. Harder objects transfer energy to each other better than softer ones. We also watched some videos about energy transfer in collisions involving hockey and cars. In Activity 10 we identified the most to the least KE., Activity 12 - We discussed ways to stop an asteroid collision with Earth. (see page 167), Activity 13 - Bumper Challenge (Performance Challenge) - ongoing., Activity 11 - (go to the google doc),

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