Force's of motion

TRUE OR FALSE: Inertia only applies to objects that are moving

• True

• False

Why does a newly oiled machine work faster than a machine that hasn't been oiled?

• Oil reduces the friction between the parts

• Oil increases the friction between the parts

• Gravity acts more on an old machine

• Gravity acts more on a new machine

Tags

NGSS.MS-PS2-2

A force is ____.

• a push or pull that can cause movement

• a magnet

• when someone does not work

To drag a sofa over carpet, movers sometimes use slippery pads. Which force is reduced with the use of the pads?

• Friction

• Gravity

• Push

• Magnetism

Force exerted between two surfaces that rub against each other

• Friction

• Mass

• Inertia

• Frictionless

Friction is:

• any push or pull on an object

• a force that opposes the motion of an object

• inertia

• a force that cannot affect the motion of an object

Tags

NGSS.MS-PS2-2

Newtons 3rd law

• Forces always act in equal

• Forces always work in opposite pair's

• Forces don't work together

• All of above

Tags

NGSS.MS-PS2-1

A student measures a pendulum as swinging a total of 13 swings in 20 seconds. Which of the following will DECREASE the number of swing cycles?

• Adding mass to the bob

• Shortening the swing

• Lengthening the string

• Releasing from a greater angle

• Releasing from a lesser angle

What is Newton's first law

• Inertia

• Friction

• Motion

• Gravity

• Magnetism

What 2 things would happen after the lady jumps off the skateboard?

• The lady would go back

• The lady would go forward

• The skateboard would go back

• The skateboard would go forward

Tags

NGSS.MS-PS2-1