Forces, Friction and Gravity Review

What is force?

• only a push

• only a pull

• something your parents do when you don't want to do it

• a push or a pull

Tags

NGSS.MS-PS2-2

What SI unit measures the strength of force?

• Newtons

• Watts

• Grams

• Meters

Tags

NGSS.MS-PS2-1

What is net force?

• How many fish can fit into one fishing net

• Sum of all forces acting on an object

• Sum of all forces in a single direction that are acting on an object

• How strong a fish needs to be to break out of a fishing net

Tags

NGSS.MS-PS2-2

How can you find the net force if two forces are acting in opposite directions?

• You divide the 2 forces

• You add the 2 forces

• You subtract the 2 forces

• You multiply the 2 forces

Tags

NGSS.MS-PS2-2

How can you find the net force if two forces are acting in the same direction?

• You divide the 2 forces

• You add the 2 forces

• You subtract the 2 forces

• You multiply the 2 forces

Tags

NGSS.MS-PS2-2

If Mr. Gilbert is pushing a box with 25N of force and Mr. P also starts pushing the box in the same direction with 35N of force, what will be the net force on the box?

• 60 N

• 65 N

• 70 N

• 10 N

Tags

NGSS.MS-PS2-2

In a tug of war, when Team A is pulling with a force of 100 N and Team B with 80 N, what is the net force?

• 180 N

• 100 N

• 80 N

• 20 N

Tags

NGSS.MS-PS2-2

What is an unbalanced force?

• Forces acting on an object that do not cause a change in motion

• Forces acting on an object to cause a change in motion

• When one hand is stronger than the other

• When there is a difference in height

Tags

NGSS.MS-PS2-2

Which picture(s) show an example of an unbalanced force?

• 
• 
• 
• 

Tags

NGSS.MS-PS2-2

What is an balanced force?

• Forces acting on an object that do not cause a change in motion

• Forces acting on an object to cause a change in motion

• When one hand is stronger than the other

• When there is no difference in height