Force in Motion

What is a force?

• a push or pull
• speed or acceleration 
• potential or kinetic energy
• balanced or unbalanced force

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

Why is person B having a hard time moving down the hill?

• Person B has more friction than person A.
• Person B has the same friction as person A.
• Person B is out of shape.
• Person B has less friction has person A.

Tags

NGSS.MS-PS2-2

What pulls a ball back to earth?

• Gas
• Gravity
• Friction
• Molecules

Tags

NGSS.MS-PS2-4

What is motion?

• A change in position.

• A change in force.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

What is speed?

• A measure of how fast something moves.

• A measure of how you move.

Tags

NGSS.K-PS2-1

NGSS.K-PS2-2

material with _______________ surfaces have less friction

• smooth

• rough

• both

friction helps you write on a paper or black board.

• true

• false

a force that opposes motion between any surfaces that are touching

• velocity
• friction
• inertia
• position

the tendency of an object to resist a change in its motion

• acceleration
• inertia
• mass
• frame of reference

True of False?
An object's inertia is effected by its mass.

• False
• True

Tags

NGSS.MS-PS2-2