Motion & Forces

What is a force?

• A. A type of energy

• B. A push or a pull on an object

• C. A measure of weight

• D. A chemical reaction

Tags

NGSS.MS-PS2-2

How is force measured?

• A. In kilograms

• B. In meters per second

• C. In Newtons

• D. In degrees Celsius

What is the equivalent of 1 pound in Newtons?

• A. 1 N

• B. 9.81 N

• C. 4.45 N

• D. 2.2 N

What does it mean when a force is balanced?

• A. It causes an object to move faster

• B. It results in a change in motion

• C. There is no change in motion

• D. It increases the weight of an object

What is an example of an unbalanced force?

• A. Two people pushing against each other with equal strength

• B. A book resting on a table

• C. A person pushing a door open

• D. A car parked on a flat surface

Tags

NGSS.MS-PS2-2

What type of force is described as a push or pull force that is applied to an object by a person or another object?

• Gravitational Force

• Normal Force

• Applied Force

• Magnetic Force

Which force is a pull force with which the Earth attracts another object towards itself?

• Tension

• Friction

• Air Resistance

• Gravitational Force

Tags

NGSS.MS-PS2-4

What is the Normal Force?

• A push force exerted by a surface as an object moves across it

• A push force exerted on an object that is in contact with another stable object

• A pull force that is transmitted through a string, rope, cable, or wire

• An attraction or repulsion force between electrically charged particles

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

Magnetic Force can be described as:

• A push/pull force exerted by a surface

• A pull force with which the Earth attracts another object

• An attraction or repulsion force between electrically charged particles

• A push/pull force that affects objects that move through the air

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Friction is best described as:

• A pull force that is transmitted through a string, rope, cable, or wire

• A push/pull force exerted by a surface as an object moves across it

• A push/pull force that affects objects that move through the air

• A push force exerted on an object that is in contact with another stable object