Forces and Motion

A force can be defined as....

• A push or a pull

• A resistance force

• A pulling force

• Trying tp open a door

Tags

NGSS.3-PS2-1

When two objects rub against each other, what will always be produced by friction is

• Heat

• Light

• A rougher surface.

• A smoother surface.

Tags

NGSS.MS-PS1-4

Sinan is flying a kite. A strong wind is blowing. This image shows the forces acting on the kite. Which arrow shows the force of gravity acting on the kite?

• Arrow A

• Arrow B

• Arrow C

• Arrow D

Tags

NGSS.MS-PS2-4

Which arrow shows the pulling force exerted by Sinan on the kite

• Arrow A

• Arrow B

• Arrow C

• Arrow D

Which arrow shows the pulling force exerted by the wind?

• Arrow A

• Arrow B

• Arrow C

• Arrow D

Which arrow shows the upward force acting on the kite, keeping the kite in the air.?

• Arrow A

• Arrow B

• Arrow C

• Arrow D

What is the name of the force shown by arrow A?

• Normal force

• Lifting force

• Air resistance

• Pushing force

Tags

NGSS.MS-PS2-2

Which two forces acting on the kite are in balance? Choose the correct answer

• A and C

• A and D

• D and B

• B and C

The strength of the wind increases, (the wind becomes even stronger), but the kite stays in the same place. What happens to the force Samir is exerting on the kite

• It gets stronger

• It makes the kite go up

• It makes the kite go down

• It breaks the string

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Kausar wanted to do an experiment to discover how much a spring will stretch when different masses are added to it. The equipment she will use is shown in this picture.

Before she starts the experiment, Kausar predicts that the more masses she adds the more the spring will stretch. This statement is an example of a.....

• Aim

• Measurement

• Conclusion

• Hypothesis