Amplify Force and Motion

In which crash did the asteroid experience the stronger force?

• There was no force on the asteroid.

• Crash 2: The force on the planet was stronger in this crash. So the force on the asteroid was stronger.

• The diagram doesn't tell you anything about the force.

• The force was the same in both crashes.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

In which crash does the satellite experience a stronger force?

• It was the same force in both crashes.

• Crash 1: The force exerted by the black asteroid would have been stronger in this crash, so the force on the satellite would also have been stronger.

• The diagram doesn't tell you anything about the force on the satellite.

• There is no force on the satellite.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

In which crash did the tennis ball experience a stronger force?

• Crash 1: The force on the soccer ball was strong so the force on the tennis ball was also stronger.

• There was NO force on the tennis ball.

• The force was the same in both crashes.

• The diagram doesn't tell you anything about the force on the tennis ball.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Complete the sentence to match your observations: When you exert a stronger force on an object, you will see ________ change in velocity as compared to exerting a weaker force on the same object.

• a greater

• a weaker

• the same

Tags

NGSS.MS-PS2-2

Three toy boats with the same mass were in a lake. Two boats were moving and one was stopped. Each boat got bumped by another boat, but not in the same direction. All the boats changed speed as a result of being bumped. Use the information in the diagram to answer.Which toy boat experienced the strongest force when it was bumped? How do you know?

• The gray toy boat experienced the strongest force because it had the fastest ending speed.

• The orange and gray toy boats experienced the strongest forces because they both gained the same force as they sped up. The blue boat lost force, so it slowed down.

• All three toy boats experienced the same strength force because they changed speed by the same amount.

• The blue toy boat experienced the strongest force because it takes a stronger force to slow something down than it takes to speed something up.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Three chairs were rolling across a flat office floor. The blue and red chairs are the same mass, and they have more mass than the yellow chair. Each chair was hit by another chair, but not from the same direction. Use the information in the diagram to answer.Which chair(s) experienced the strongest force when hit? How do you know?

• The blue and red chairs experienced the strongest force because they are both more massive than the yellow chair and they changed speed by the same amount.

• The red chair experienced the strongest force because it is as massive as the blue chair and has the highest ending speed.

• All three chairs experienced the same force because they changed speed by the same amount.

• The blue chair experienced the strongest force because it takes more force to slow an object than it takes to make it go faster.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Scott and James work at a grocery store. After the grocery store closed, they were playing a game with a shopping cart and Scott’s skateboard. They crashed the skateboard and the shopping cart two times. The shopping cart had more mass in Crash 2 than it did in Crash 1. Use the information in the diagram to answer.In which crash did the skateboard experience the stronger force? Why?

• The skateboard did not experience a force; only the shopping cart experienced a force in the crashes.

• Crash 2; the force on the cart was stronger in this crash, so the force on the skateboard was also stronger.

• The diagram doesn’t tell you anything about the force on the skateboard. It only gives information about the force on the shopping cart.

• The skateboard experienced the same force in both crashes. The shopping cart changed speed by the same amount in each crash, so the force on the skateboard was the same each time.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which of the following simple machines is used to amplify force?

• Lever

• Pulley

• Inclined Plane

• All of the above

What is the primary purpose of using a pulley system in lifting heavy objects?

• To increase the speed of lifting

• To amplify the force applied

• To decrease the weight of the object

• To change the direction of the force

Tags

NGSS.MS-ETS1-2

• Force

• Mass

• Acceleration

• Amplitude