FORCE AND MOTION-KEY CONCEPTS

Force is defined as:

• The push on an an object.

• The push or pull on an object.

• How fast an object moves.

• The change or variation in the speed of an object.

What is mass?

• The quantity of matter inside an object.

• How fast an object moves.

• The change or variation of an object.

• None of the above.

What can a force cause on an object:

• It can cause the object to accelerate or slow down.

• It can cause the object change its shape.

• It can cause the object to remain in place.

• All of the above are correct.

The picture above is best described as:

• Push: move forwards.

• Pull: move backwards.

The picture above is best described as:

• Push: move forward.

• Pull: move backwards.

The formula that best defines force is:

• F= m*a.

• F= m/a.

• F= v* m.

• None of the above.

Which cart will have more acceleration?

• The full cart because it has more (+) mass.

• The empty cart because it has less (-) mass.

• The full cart because it has less (-) mass .

• The empty cart because it has more (+) mass.

The empty cart will have more acceleration because:

• The greater the mass, the less the acceleration of an object and the greater the force applied on it.

• The greater the mass, the greater the acceleration of an object.

• The greater the mass, the less force applied on an object.

• None of the above.

The speed at which something moves in one direction:

• Acceleration.

• Mass.

• Force.

• Velocity.

The change in the speed of an object:

• Mass.

• Force.

• Velocity.

• Acceleration.