What force keeps the moon in orbit around the Earth?

• Weight
• Mass
• Gravity
• Magnetism

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Which of the following forces is a force that acts on an object by touching the object?

• electricity
• friction
• gravity
• magnetism

On the Picture the balloon pushes the air right. What is the second force in this interaction pair?

• The air pulls the ball left
• Gravity pulls the balloon down
• The air pushes the balloon left.
• The air pulls the balloon right.

Tags

NGSS.MS-PS2-1

What is the net force?

• 40 N left
• 0 N Balalnced
• 400 N right
• 40 N right

Tags

NGSS.MS-PS2-2

What is the unit of force?

• Kilogram
• Meter
• Pascal
• Newton

for every action force there is...

• An equal and opposite reaction force
• An equal and different reaction force
• a different force
• two more forces

Tags

NGSS.MS-PS2-1

Forces that happen between objects that touch are called _____________.

• magnetism
• gravity
• slippery
• contact forces

More force is needed to move __________ objects than to move light objects.

• big
• heavy
• square
• round

Tags

NGSS.MS-PS2-2

Forces can make objects start moving, _________, ________, or stop moving.

• speed up, friction
• push, slow down
• speed up, slow down
• push, pull

Tags

NGSS.MS-PS2-2

Forces can change the ________ of a moving object.

• direction
• push
• pull
• friction

Tags

NGSS.MS-PS2-2