Experimenting with Forces Practice

What question could the student be trying to answer based on the experiment set up in the picture if they slowly drop pennies into the cup?

• How many spaghetti noodles does it take to hold up the cup?

• How much force it takes to break the spaghetti noodle?

• How long the string needs to be to support the pennies?

• How does distance between the two chairs affect the amount of force?

Tags

NGSS.MS-ETS1-1

NGSS.MS-PS2-2

When you perform an experiment where you are pulling three boxes of different weights across a surface, what do you need to do for the experiment to be valid results?

• conduct 5 trials for each box using a different spring scale to pull each time

• conduct 5 trials for each box pulling on a different side of the box each time

• conduct 5 trials for each box using a different table each time

• conduct 5 trials for each box , pulling the box the same way on the same table, with the same scale each time

Tags

NGSS.MS-PS2-2

If you drop a ping pong ball and golf ball from the same height into a sand box they will leave different dents in the sand where they land. Why is the of the dents deeper with the golf ball than the ping pong ball?

• The size of the ball is different?

• The material they are made of is different

• The mass of the ball is different

• The amount of force of the ball will be different when it hits the sand because of the different masses of each ball. (The more mass the more force to start or stop a movement)

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

NGSS.MS-PS3-5

If you have two people standing on opposite sides of a wagon, what is the easiest way to move the cart?

• One person pulls the cart to the left, and the other pulls to the right

• One person pulls to the right, while the other person pushes to the right so they work in the same direction

• One student pulls to the left and the other presses down as hard as they can

• One student pulls to the left and the other student pulls up

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

When a baseball player hits a ball with their bat, what is happening in terms of the science we learned?

• The baseball player is doing work by pushing the ball and changing its motion and position

• Changing the position, but not the motion of the ball.

• They are doing work by pulling the racquet and changing the balls position but not the motion.

• Changing the position and motion of the ball without doing any work.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS3-1

NGSS.MS-PS3-5