Force and Motion Quiz

What is a force?

• A force is a measurement of weight.

• A force is a push or pull that can change the motion or shape of an object.

• A force is a type of energy.

• A force is a form of sound.

Give an example of a contact force.

• Gravity

• Friction

• Magnetism

• Electricity

What is the difference between static friction and kinetic friction?

• Static friction occurs between two surfaces that are not in contact, while kinetic friction occurs between two surfaces that are in contact.

• Static friction occurs between two surfaces that are in contact and at rest, while kinetic friction occurs between two surfaces that are in contact and are moving over each other.

• Static friction occurs between two surfaces that are in contact and at rest, while kinetic friction occurs between two surfaces that are not in contact.

• Static friction occurs between two surfaces that are in contact and are moving over each other, while kinetic friction occurs between two surfaces that are in contact and at rest.

How does friction affect motion?

• Friction opposes motion and causes it to slow down or stop.

• Friction increases motion and causes it to speed up.

• Friction has no effect on motion.

• Friction causes motion to change direction.

What is gravity?

• Gravity is a force that repels two bodies away from each other.

• Gravity is a force that attracts two bodies towards each other.

• Gravity is a myth created by scientists to explain the movement of objects.

• Gravity is a type of energy that flows through the universe.

What is the acceleration due to gravity on Earth?

• 1.23 m/s²

• 5.67 m/s²

• 12.34 m/s²

• 9.81 m/s²

What is the difference between balanced and unbalanced forces?

• Balanced forces and unbalanced forces are the same thing

• Balanced forces result in a change in motion, while unbalanced forces cancel each other out

• Balanced forces cancel each other out and result in no change in motion, while unbalanced forces do not cancel each other out and result in a change in motion.

• Balanced forces only occur in space, while unbalanced forces only occur on Earth

State Newton's first law of motion.

• An object at rest will stay at rest, and an object in motion will stay in motion with the same speed and in the same direction, unless acted upon by an external force.

• An object at rest will stay at rest, and an object in motion will stay in motion with a different speed and in a different direction, unless acted upon by an external force.

• An object at rest will stay at rest, and an object in motion will eventually come to a stop, unless acted upon by an external force.

• An object at rest will stay at rest, and an object in motion will change its speed and direction, unless acted upon by an external force.

What is the formula to calculate force?

• force = mass x acceleration

• force = mass - acceleration

• force = mass + acceleration

• force = mass / acceleration

Explain Newton's third law of motion.

• For every action, there is an equal and opposite reaction.

• For every action, there is a smaller and opposite reaction.

• Every action has a greater reaction.

• Newton's third law of motion states that every action has no reaction.