Forces EOG

What happens when 2 equal forces act on an object in opposing directions?

• no movement; won't move

• Object will move in the direction of the force

• Object will move in the opposite direction of the force

• the object flies

Tags

NGSS.MS-PS2-2

How is motion affected when forces are unbalanced acting on an object?

• Change the speed, change direction, & cause and object at rest to move or change positions

• change speed

• change directions

• object at rest will move or change positions.

Tags

NGSS.MS-PS2-2

How is motion affected when forces are balanced acting on an object?

•  Keep an object moving at the same speed.

•  Keep an object at rest or not moving

• Both options

• Neither option

Tags

NGSS.MS-PS2-2

What is a contact force?

• A force that touches the object to make it move or change directions

• force that does not touch the object to make it move or change direction.

What is a non-contact force?

• A force that touches the object to make it move or change directions

• force that does not touch the object to make it move or change direction.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Which best explains why a bicycle slows down when its brakes are applied?

• The brakes heat the rubber on the bicycle tires.

• The brakes add energy to the bicycle.

• The brakes increase the force of gravity on the bicycle

• The brakes cause frictional forces on the wheels of the bicycle

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-5

What causes a wagon to speed up when going down a hill?

• gravity

• friction

• air pressure

• mass

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What is the net force on an object if two forces of 5 N and 10 N act on it in the same direction?

• 5 N

• 10 N

• 15 N

• 0 N

Tags

NGSS.MS-PS2-2

Which of the following is an example of a non-contact force?

• Friction

• Tension

• Magnetic force

• Normal force

Tags

NGSS.MS-PS2-5

If a car is moving at a constant speed, what can be said about the forces acting on it?

• Forces are balanced

• Forces are unbalanced

• Only gravitational force acts

• Only frictional force acts