Amplify Force and Motion

Scientists created models that show a rocky asteroid crashing into a moon (less mass) and a planet (more mass). In both crashes, the asteroid was the same mass. Scientists want to know what will happen to the asteroid. Use the information in the diagram to answer.In which crash did the asteroid experience the stronger force? How do you know?

• Crash 2; the force on the planet was stronger in this crash, so the force on the asteroid will also be stronger.

• There was no force on the asteroid. Only the moon and planet experienced a force in each crash.

• The diagram doesn’t tell you anything about the force on the asteroid. It only gives information about the force on the planet and the moon.

• The force was the same in both crashes. The planet and moon changed speed by the same amount so that means the force on the asteroid was the same in both crashes.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which of the following is one of the five ways an object's motion can change:

• hit something

• bounce off something

• Speed Up

• fly off the table

Tags

NGSS.MS-PS2-2

In order for an object to speed up, the direction of the force is:

• in any direction

• in the same direction as the object's motion

• in the opposite direction of the object's motion

In order for an object to start moving, the force must come from

• the same direction as the object's motion

• the opposite direction as the object's motion

• any direction

In order for an object to stop moving, the force must come from

• the same direction as the object's motion

• the opposite direction as the object's motion

• any direction.

Tags

NGSS.3-PS2-1

A push or pull that can cause motion.

• velocity

• speed

• cause

• force

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

At dinner, Hans passed the salt shaker to his sister Jessica by sliding it across the wooden table. The salt shaker gradually slowed down and stopped after moving 12 centimeters.Why did the salt shaker stop moving?

• The salt shaker ran out of force.

• The table exerts a force that is opposite to the salt shaker's motion.

• The table absorbs force from the salt shaker.

• All objects stop moving because their natural state is to be still.

Tags

NGSS.3-PS2-1

Which of the following devices is used to amplify force in a mechanical system?

• Lever

• Thermometer

• Voltmeter

• Barometer

Tags

NGSS.MS-ETS1-2

In a pulley system, what happens to the force required to lift an object as the number of pulleys increases?

• Increases

• Decreases

• Remains the same

• Becomes zero

Which of the following is an example of a simple machine that amplifies force?

• Inclined Plane

• Battery

• Light Bulb

• Thermostat