Force and Motion Unit Test S

Front

What is Net Force?

Back

Net Force is the total force acting on an object after all the individual forces are combined. It determines the object's acceleration.

Front

What are the three NON-CONTACT forces?

Back

Gravity, electricity, and magnetism.

Front

What does inertia mean?

Back

Inertia is the tendency of an object to resist changes in its state of motion. A resting object will remain at rest unless acted upon by a net force.

Front

How do you calculate distance?

Back

Distance = Speed x Time. For example, if a cyclist travels at 26 miles/hr for 7 hours, the distance is 26 x 7 = 182 miles.

Front

When is an object considered to be in motion?

Back

An object is in motion if its position changes relative to a reference point over time.

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object. It occurs when two surfaces come into contact.

Front

What is gravity?

Back

Gravity is a non-contact force that attracts two bodies towards each other, depending on their masses and the distance between them.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It can be calculated using the formula: Acceleration = (Final Velocity - Initial Velocity) / Time.