Newton's Laws of Motion Coin Lab

Newton's 1st Law An object at rest stays at rest and an object in motion stays in motion with a constant direction and velocity unless a force acts on it. Activity 1: Party Trick What you will need:1 playing or index card, 1 cup, 1 coinProcedure:1. Place the card on top of the cup. Make sure there is enough space to give one edge of the card a good flick without smacking your finger on the cup. Ouch!2. Place a single coin on top of the card so that it rests over the cup's opening.3. Flick an exposed edge of the card. Don't flick the card from underneath. Flick directly from the side of the card's edge.4. The coin should fall straight down into the cup! This will even work with a stack of coins.5. Answer the questions below. Was the coin at rest or in motion before you flicked the card away? At rest In motion When you flicked the card, to what object did you apply the force? The coin The card Both the coin and the card. Neither the coin or the card A) When the card was gone, what force acted on the penny to cause it to fall down into the cup?B) What force from the card was originally preventing it from falling? Explain how this activity demonstrates Newton’s 1st law of motion. Activity 2: Toppling Towers What you will need: A stack of 5 or more coins that are the same size, 1 additional coinProcedure: 1. Stack the 5 coins one on top of the other.2. In a quick motion, strike just the bottom coin with the additional coin3. Only the bottom coin should slide out and the rest of the coins should stay in a stack!4. Answer the questions below. Were the coins in the stack at rest or in motion before you hit them with the additional coin? At rest In motion To which coin in the stack did you apply the force with the additional coin? Top coin Bottom coin All the coins in the stack There was no force applied. When you knocked out the bottom coin from the stack, what force acted on the rest of the stacked coins to make them fall down? Explain how this activity demonstrates Newton’s 1st law of motion. Activity 3: Balloon of Death (Do this activity last!) What you will need: 1 penny, 1 balloon.Procedure:1. Insert the penny into the balloon. Tie the balloon off.2. Hold the balloon as shown and rotate the balloon.3. The penny should spin around the circumference of the balloon just like the classic cage of death motorcycle shows.4. Allow the penny to come to a stop in the balloon.5. Answer the questions below. What force causes the penny to stay in the circular path around the circumference of the balloon? Hint: I did a demo of this for you with the bucket of marbles in class. What two forces cause the penny to slow down and fall to the bottom of the balloon? Explain how this activity demonstrates Newton's first law. Newton's 2nd Law The acceleration of an object is due to the forces on an object and its mass.Force= mass x acceleration Activity 1: Colliding Coins What you will need: Two pennies, a quarterProcedure:1. Line the penny and the quarter up as shown.2. Using the same amount of force, hit the penny and the quarter head on with your other penny. Note the distance travelled by each coin.3. Answer the questions below. Which coin has more mass? penny quarter Which coin had a larger acceleration when hit with the other penny? penny quarter Explain how this activity demonstrates Newton's 2nd law. Newton's 3rd Law For every action there is an equal and opposite reaction. Activity 1: Newton's Cradle For this demo you will need: 5 coins of the same sizeProcedure:1. Line the coins up so they look like the diagram below.2. Slide the single coin into the group of four. A single coin should come out on the other side! You can try sliding two coins into a row of three, Two coins should shoot out the other side.3. Answer the questions below. Explain how this activity demonstrates Newton's third law.