Motion and Forces

.....................are the pushes and pulls that affect motion.

• Forces

• Gravity

• Mass

• Air Resistance

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Forces that are equal in size and opposite in direction are called

• balanced forces

• unbalanced forces

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Forces that are unequal in size are called

• unbalanced forced

• balanced forces

What is the unit for force?

• N (Newtons)

• lbs (pounds)

• g (grams)

• m/s (meters per second)

Tags

NGSS.MS-PS2-2

When forces are acting in the same direction they should be added together.

• True

• False

Tags

NGSS.MS-PS2-2

Forces that are acting in opposite directions should be subtracted from each other.

• True

• False

Tags

NGSS.MS-PS2-2

What is the net force?

• 17 N Right
• 3 N Right
• 3 N Left
• 17 N Left

Tags

NGSS.MS-PS2-2

What two things determine the gravity of an object?

• mass & weight

• mass & distance

• density & mass

• volume & distance

Tags

NGSS.MS-PS2-4

When will the forces of gravity between two objects be the GREATEST?

• when the masses of both objects are small and the objects are far apart

• when the masses of both objects are large and the objects are close together

• when the masses of both objects are small and the objects are close together

• when the masses of both objects are large and the objects are far apart

Tags

NGSS.MS-PS2-4

Friction always

• (a) opposes the motion

• (b) helps the motion

• (c) both (a) and (b)

• (d) none of these

Tags

NGSS.MS-PS2-2