Physics Interim Test Review

Front

What is the net force?

Back

The net force is the overall force acting on an object when all the individual forces are combined. It determines the object's motion.

Front

What is inertia?

Back

Inertia is the property of an object to resist changes in its state of motion. An object in motion stays in motion unless acted upon by an external force, and an object at rest stays at rest unless acted upon by an external force.

Front

What is average speed?

Back

Average speed is the total distance traveled divided by the total time taken. It is measured in units like km/h.

Front

How does friction affect a moving object?

Back

Friction is a force that opposes motion. It decreases the speed of a moving object.

Front

What is an abiotic factor in an ecosystem?

Back

Abiotic factors are non-living components of an ecosystem, such as sunlight, water, temperature, and minerals.

Front

What is the formula for calculating net force?

Back

Net force (F_net) = mass (m) x acceleration (a).

Front

What is the relationship between mass and inertia?

Back

The greater the mass of an object, the greater its inertia. Heavier objects are harder to move or stop.

Front

What is the effect of balanced forces on an object?

Back

Balanced forces do not change the motion of an object. The object remains at rest or continues to move at a constant speed.

Front

What is the effect of unbalanced forces on an object?

Back

Unbalanced forces cause an object to accelerate, changing its speed or direction.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion, calculated as KE = 1/2 mv², where m is mass and v is velocity.