Forces, Motion, and Energy

Pick the two factors that affect the gravitational pull of an object.

• mass

• volume

• distance

• shape

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Making a surface smoother can decrease the force of:

• gravity

• friction

• magnetism

If two unbalanced forces are pulling on an object in opposite directions, which way will the object move?

• in the direction of the greater force

• in the direction of the lesser force

• it won't move at all

Tags

NGSS.MS-PS2-2

Which part of a bar magnet has the strongest magnetic force?

• poles

• middle

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What is the math formula for calculating speed?

• distance divided by time

• time divided by distance

• distance multiplied by time

Which of the following is true?

• Energy cannot be created or destroyed, only transformed.

• Energy can be created but not destroyed.

• Energy can be destroyed but not created.

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-4

What form of energy is always produced during an energy transformation?

• light

• sound

• heat

• nuclear

Tags

NGSS.MS-PS3-4

NGSS.MS-PS1-4

What happens to the motion of molecules when they are heated?

• Motion increases.

• Motion decreases.

• Motion stays the same.

Tags

NGSS.MS-PS1-4

What property of light causes the pencil in the water to appear broken?

• absorption

• reflection

• refraction

Tags

NGSS.MS-PS4-2

Sound waves will not travel through a:

• solid

• liquid

• gas

• vacuum

Tags

NGSS.MS-PS4-2