8th Weeks 4 & 5

Which type of force can be used to kick a ball across a field?

• a: contact

• b: non-contact

• c: gravity

• d: friction

How is weightlessness achieved by NASA’s KC-135 plane?

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

What did Isaac Newton contribute to the understanding of gravity?

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

What is the tendency of objects at rest?

A push is an example of _____.

• a: gravity

• b: friction

• c: force

• d: velocity

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

What causes a ball thrown in the air to fall to the ground?

• a: friction

• b: inertia

• c: mass

• d: gravity

Tags

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An unbalanced force to the right will cause an object to move, or to accelerate, in which direction?

• a: left

• b: right

• c: upward

• d: downward

Tags

NGSS.MS-PS2-2

Which force is most responsible for slowing a bicycle down when the brakes are applied?

• a: friction

• b: gravity

• c: inertia

• d: magnetism

Consider the table from the Let’s Investigate on Page 4. If a student weighs 100 pounds on Earth, what would her weight be on Mars?

• a: 38

• b: 138

• c: 76

• d: 19

If a student weighs 100 pounds on Earth, how much more or less would she weigh on Pluto than Mars?

• a: She would weigh 38 pounds less on Pluto

• b: She would weigh 38 pounds more on Pluto.

• c: She would weigh 31 pounds more on Mars.

• d: She would weigh 31 pounds less on Mars.

Tags

NGSS.MS-PS2-4