Forces 6.7A

Multiple Choice

What is a force?

• a push or pull

• speed or acceleration 

• potential or kinetic energy

• balanced or unbalanced force

Multiple Choice

______________________ is the force that resists the motion of two surfaces that are touching.

• gravity

• friction

• force

• non-contact

Multiple Choice

Gravity can be defined as the –

• force of attraction between two or more masses.

• friction created when two objects are in contact.

• energy given off by stars due to nuclear reactions.

• path an object follows as it moves through space.

Poll

Identify Between which two objects is the gravitational force the greatest?

• A

• B

• C

• D

  They are all the same

Multiple Choice

What will happen when these magnets are brought close together?

• They will attract each other.
• They will repel each other.
• Both magnets will turn to the left
• Both magnets will turn to the right

Multiple Choice

The strongest part of a magnet is...

• the bars.
• the force field.
• the poles. 
• the middle.

Multiple Choice

What is the type of force that both the ground and the wall exerts on the sitting man?

• Friction

• Gravity

• Applied Force

• Normal Force

Multiple Choice

Which of the following terms refers to the unit used to measure force?

• Newtons

• Mass

• Gravity

• Friction

Multiple Choice

Which of the following is NOT a type of force discussed in this lesson?

• Gravity

• Friction

• Magnetism

• Evaporation

Multiple Choice

Which force pulls objects toward the Earth?

• Magnetic force

• Electric force

• Gravitational force

• Tension force

Multiple Choice

This arrow depicts which kind of force?

• gravitational

• normal

• applied

• friction

Match

Match the following forces with their types.

• Gravitational force

• Magnetic force

• Friction

• normal force

Force experienced by objects due to mass

Force between poles of magnets

repulsive

Force opposing motion between surfaces

any force that is

applied perpendicularly

• Force experienced by objects due to mass

• Force between poles of magnets

  repulsive

• Force opposing motion between surfaces

• any force that is

  applied perpendicularly

​Interactivity

Multiple Choice

Which force resists motion when two surfaces are in contact?

• Friction force

• Tension force

• Applied force

• Normal force

Multiple Choice

Which force prevents a book from falling through a table?

• Gravity force

• Friction force

• Air resistance force

• Normal force

Multiple Choice

What is a pulling force that pulls things down towards the center of the Earth?

• friction

• applied force

• magnetic force

• gravity

Multiple Choice

What is a push or pull that causes motion?

• force

• gravity

• friction

• buoyancy

Multiple Choice

What is a pulling force when placed near magnetic objects and other magnets with opposite poles. A pushing force when next to a magnet with the same pole facing?

• force

• gravity

• magnetic force

• air resistance

Multiple Choice

The forces that need two objects to be in contact with each other are called.......

• contact forces

• non-contact forces

• electric forces

• magnetic forces

Multiple Choice

what force is pulling the apple down?

• gravitational force

• tension

• normal reaction

Multiple Choice

what is the force shown in the picture?

• magnetic force

• electric force

• applied force

Multiple Choice

Is the force of attraction that the body with mass exerts on another.

• Tension

• Push or pull

• Gravity

• Normal force

Multiple Choice

What force ultimately slows the roller coaster to a stop?

• Applied

• Normal

• Friction

• Gravitational

Multiple Choice

What force holds the planets in motion around the sun?

• Magnetic
• Electrical
• Gravitational
• Air Resistance

Multiple Choice

A type of friction that occurs when air pushes against a moving object causing it to decelerate.

• surface area
• air resistance
• velocity
• gravity 

Multiple Choice

Force created between two touching forces is ______ force

• gravitational

• seen

• contact

• friction

Multiple Choice

as the mass of an object increases, the pull of gravity...

• Increases

• Decreases

• Stays the same

Multiple Choice

What does the strength of gravity between two objects depend upon?

• Mass & distance
• Mass & weight
• Gravity & inertia
• Inertia & mass

Multiple Select

Choose all the examples that demonstrate the force of friction.

• A. A bike rolling down a hill

• B. Rubbing hands together to keep warm

• C. Air rushing over and around a car as it drives down the road

• D. A pot resting on a silicone pad to absorb heat from cooking

Multiple Choice

Look at the diagram. Three bar magnets, each with opposing poles, are placed near each other in a straight line. Which of the following variables can change the strength of the magnetic force between the magnets?

• Distance between the magnets

• Color of the magnets

• Material of the table

• Shape of the magnets

Multiple Choice

Generated between two bodies in contact with each other by resistance to rubbing between them.

• Push or pull

• Tension

• Elasticity

• Friction

Multiple Choice

What states that "every object in the universe attracts every other object"?

• Law of Universal Gravitation
• Newton's First Law of Motion
• My mother
• Inertia & gravity

Multiple Choice

A force that resists motion between two surfaces that are pressed together

• bouyancy

• air resistance

• friction

• gravity

Multiple Choice

The action or process of moving or being moved

• rest

• energy

• inertia

• motion

Multiple Choice

The unit of measurement for force is:

• Newton

• Kilogram

• Kilometer

• Joule

Multiple Choice

This force is a non-contact force

• magnetic

• normal

• tension

• spring

Multiple Choice

What force brings the pencil down towards the Earth?

• Friction

• Magnetic

• Electric

• Gravitational

Multiple Choice

What type of force causes these balloons to move toward or away from each other?

• Gravitational
• Applied
• Magnetic
• Electrical

Multiple Choice

What type of force helps slow down a moving car?

• normal force

• gravitational force

• electrical force

• frictional force