Force and Motion

Front

What is average speed?

Back

Average speed is the total distance traveled divided by the total time taken.

Front

If a man and a ball travel 90 m in 9 seconds, what is their average speed?

Back

10 m/s

Front

What are unbalanced forces?

Back

Unbalanced forces are forces that cause an object to accelerate or change its motion.

Front

What happens to a stationary object if no force is applied?

Back

The object will remain stationary.

Front

What is gravity?

Back

Gravity is the force that attracts two bodies towards each other, keeping satellites in orbit around Earth.

Front

What is speed?

Back

Speed is the distance something travels in a set amount of time.

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time

Front

What are balanced forces?

Back

Balanced forces are equal in size and opposite in direction, resulting in no change in motion.

Front

What is the effect of friction on motion?

Back

Friction opposes motion, slowing down or stopping moving objects.

Front

What is acceleration?

Back

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