Forces and Speed

Question 1

What is the formula for speed?

Answer 1

Speed = Distance/Time

Question 2

What is the formula for distance?

Answer 2

Distance = Speed x Time

Question 3

What is the formula for time?

Answer 3

Time = Speed x Distance

Question 4

What is thrust?

Answer 4

A force created by an engine

Question 5

What is the force pushing upwards on an object in a liquid called?

Answer 5

Upthrust

Question 6

What is the force pushing upwards on an object flying in the air called?

Answer 6

Lift

Question 7

What is air resistance/drag?

Answer 7

The force acting against any object moving through the earth’s atmosphere

Question 8

What is weight?

Answer 8

A force that pulls objects towards the earth’s surface

Question 9

How do you convert grams to newtons?

Answer 9

You divide the grams by 100

Question 10

What happens when the forces on an object is balenced?

Answer 10

The object is either stationary or moving at a constant speed

Question 11

Are the forces balanced or unbalanced when an object is speeding up or slowing down?

Answer 11

Unbalenced

Question 12

How do you work out something’s weight on earth with it’s mass?

Answer 12

You multiply it’s mass by 10

Question 13

What does IV stand for and what is it?

Answer 13

An independent variable (IV) is what we change

Question 14

What do we do with a dependent variable?

Answer 14

We measure the DV (dependent variable)

Question 15

What does CV stand for and what does it do?

Answer 15

A CV is a control variable and it is a variable that does not change

Question 16

What’s a resistive force?

Answer 16

A resistive force is a force that acts in the opposite direction of the motion