"Drive the car like a rocket" PPT courseware on motion and force

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"Drive the car like a rocket" PPT courseware on motion and force

The relationship between the direction of the balloon's jet and the direction of movement

When the gas in the balloon is ejected, it will produce a thrust in the opposite direction of the ejection, called recoil.

Rockets fly by the recoil generated by the jet's flames.

Discussion: Can you drive a car like a rocket?

Challenge activity: drive a car with a balloon

1. Assemble the car (pay attention to the teacher’s assembly method)

2. The balloons are driven simultaneously at the same place

test you

1. Fix the fully inflated balloon on the car, release the nozzle of the balloon, and the gas in the balloon will spray out, thus generating a ( ) in the opposite direction to the spray direction, pushing the car forward. This force that drives the car is called ( ).

2. To make a stationary object move, the object must ( )

To make an object move faster, the object must ( )

To stop a moving object, the object must ( )

3. What does a rocket rely on to fly?

Rockets fly by the recoil generated by the jet's flames.

4.Jets, ______, ______, etc. all move by recoil.

Expand and think

1. What is the relationship between the distance the balloon car travels? (Name two points)

2. Think about how to stop a moving car?

3. Can changing the size of the jet nozzle change the distance the balloon car travels?

Tell me what you gained from this class?

Recoil force - the thrust opposite to the direction of ejection

Rocket - the recoil of a jet of flame (jet, rocket, firecracker)

Force - can make an object move from rest to motion

Use more force - make the object move faster

Resistance - can stop an object from moving

Let the car run further - increase the balloon inflation, make the surface smoother, and make the car lighter

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"Drive the car like a rocket" Motion and force PPT download:

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"Drive the Car Like a Rocket" Motion and Force PPT:

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"Drive the Car Like a Rocket" Motion and Force PPT Courseware 3:

"Driving a car like a rocket" Motion and force PPT courseware 3 Use rubber bands as power Objects such as rubber bands and springs can easily change their shape when they are acted upon by external forces. When their shape changes, they will generate a force to restore their original shape. , this force is called ____. ..

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Update Time: 2024-10-19

This template belongs to science courseware Fifth Grade Science Volume 1, Textbook Edition industry PPT template

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