Laws of motion

A force is a

• A push only

• A pull only

• A push or pull

• Energy

The tendency of an object to resist a change in its motion is:

• acceleration
• inertia
• mass
• frame of reference

Friction is a force that always acts

• perpendicular to an object's motion

• opposite to an object's motion

• in the same direction as an object's motion

• parallel to the object's motion

net force

• The total of all forces acting on an object

• The rate of change in velocity over time

• The property of a moving object that depends on its mass and velocity

• The tendency of an object to resist a change in its movement

friction

• A force that resists motion in two objects that are moving against each other

• The result of unbalanced forces in a system where the net force is not 0; It occurs when an object changes position in relation to a reference point

• A push or pull exerted on an object

• The law of inertia. The greater the mass, the greater the inertia.

gravity

• The force of attraction acting between all matter

• The result of unbalanced forces in a system where the net force is not 0; It occurs when an object changes position in relation to a reference point

• The speed of an object in a particular direction

• The unit of force that equals 1kg x m/sec^2

Looking at the image. Decide if this is balanced or unbalanced.

• Unbalanced

• Balanced

Newton's 1st Law is know as the law of _____.

• staying in motion

• staying at rest

• balanced forces

• inertia

What is Newton's First Law of Motion?

• F=m x a
• Every action has an equal and opposite reaction
• An object at rest stays at rest, an object in motion stays in motion unless acted on by another force. 
• Friction 

Which type of force(s) will cause a change in an object's motion?

• gravity
• zero net force
• balanced forces
• unbalanced forces