12/6 ADV Friday's Test

Front

What is the definition of balanced forces?

Back

Balanced forces do not result in a change in motion.

Front

What is the definition of unbalanced forces?

Back

Unbalanced forces result in a change in motion.

Front

How can you describe the movement of an object at constant speed?

Back

The object moves the same distance in equal intervals of time.

Front

What is the formula to calculate time when distance and speed are known?

Back

Time = Distance ÷ Speed.

Front

If a car travels 540 km at a speed of 100 km/h, how long does it take?

Back

5.4 hours.

Front

What does it mean for an object to accelerate?

Back

Acceleration is the rate of change of velocity of an object.

Front

What is an autotrophic organism?

Back

An autotrophic organism produces its own food, typically through photosynthesis.

Front

What role do producers play in a food chain?

Back

Producers create energy for the food chain by converting sunlight into food.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity (magnitude only), while velocity is a vector quantity (magnitude and direction).

Front

What does a graph showing constant speed look like?

Back

A straight line with a positive slope.