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DJ 8th Grade > DJ Science Test Prep 10/13/22 > Flashcards

DJ Science Test Prep 10/13/22 Flashcards

1
Q

Types of forces

A

force, contact force, non contact force

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2
Q

push or pull of object

A

force

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3
Q

push or pull on one object by another that’s touching it

A

contact force

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4
Q

gravity which pulled something

A

non contact force

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5
Q

1 non-contact force

A

gravity

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6
Q

SI unit for force is

A

the newton

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7
Q

What has more force a tennis ball or a ping pong ball and why?

A

tennis ball because it’s larger

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8
Q

attractive force that exists between all objects that have mass

A

gravity

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9
Q

amount of matter in an object, everything has mass

A

mass

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10
Q

If something has more mass it has ______gravitational pull

A

more

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11
Q

This is the gravitational force that is exerted on an object

A

weights

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12
Q

Something that slows you down

A

friction

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13
Q

What causes friction between spaces?

A

microscopic dips and bumps

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14
Q

Combination of all forces acting on an object

A

net force

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15
Q

Newton’s first law

A

when an object is staying still, but another object bumps into it.

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16
Q

When same direction forces combine

A

combining forces

17
Q

uncombined forces

A

opposite

18
Q

forces acting upon an object that combine and form a net force of 0

A

Balanced forces

19
Q

tendency of object to resist change in its motion

A

inertia

20
Q

What is Newtons 2nd law?

A

F=ma

21
Q

Force is measured in

A

Newtons

22
Q

F =

A

ma

23
Q

What is any motion?

A

circular motion

24
Q

What is Newton’s 3rd Law?

A

When an object exerts a force on a second object, the second object exerts an equal force in the opposite direction of each object.

25
Q

the forces two objects apply to each other

A

force pair

DJ 8th Grade (5 decks)

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