Topic 2 Experience 2

What is the combination of all forces acting on an object called?

• Balanced Force

• Net Force

• Unbalanced Force

• Normal Force

Tags

NGSS.MS-PS2-2

What is the energy of motion known as?

• Potential Energy

• Thermal Energy

• Kinetic Energy

• Chemical Energy

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which forces are always applied in a perpendicular direction to the surface?

• Frictional Force

• Gravitational Force

• Normal Force

• Tension Force

What does Newton's 3rd Law state?

• An object in motion stays in motion

• For every action force, there is an equal but opposite reaction force

• Force equals mass times acceleration

• Energy cannot be created or destroyed

Tags

NGSS.MS-PS2-1

What are elements that have some metallic and nonmetallic properties called?

• Metals

• Nonmetals

• Metalloids

• Alloys

What is the degree of strength referred to as?

• Volume

• Magnitude

• Density

• Mass

What are the action-reaction forces known as?

• Balanced Forces

• Force Pair

• Unbalanced Forces

• Gravitational Forces

Tags

NGSS.MS-PS2-1

What has a definite volume but no definite shape?

• Solid

• Gas

• Liquid

• Plasma

You push on a file cabinet on wheels with a force of 125 N to the right. A friend pushes on the same file cabinet with a force of 97 N to the left. What is the net force on the file cabinet? In what direction will it move?

• 28 N to the right

• 28 N to the left

• 222 N to the right

• 222 N to the left

Tags

NGSS.MS-PS2-2

Tomás and his younger sister Gwen are finishing work on a wood sculpture. A friend is helping them attach the sculpture to its base. Tomás and Gwen each stand on one side of the sculpture and push on it. They manage to hold it still until their friend finishes attaching the base. Which statement about the forces in this situation is correct?

• The forces exerted by Tomás and Gwen are balanced because the sculpture will fall over without a base.

• The forces exerted by Tomás and Gwen are balanced because the sculpture remains still.

• The forces exerted by Tomás and Gwen are unbalanced because the siblings are not the same age.

• The forces exerted by Tomás and Gwen are unbalanced because the sculpture cannot stand on its own.