physics - motion and forces

Question 1

What is a scalar quantity?

Answer 1

A scalar quantity is a quantity which has a size but no direction.

Question 2

What is a vector quantity?

Answer 2

A vector quantity is a quantity which has both a size and a specific direction.

Question 3

Is acceleration a vector or scalar quantity

Answer 3

Vector

Question 4

What is the equation for speed?

Answer 4

s = d/t

Question 5

How can you rearrange the equation for speed to find the total distance?

Answer 5

d = s x t

Question 6

In a distance/time graph, which value is on the x-axis?

Answer 6

time

Question 7

What is the equation for acceleration?

Answer 7

a = (v - u) / t

Question 8

What is Newton’s first law?

Answer 8

Newton’s first law of motion states that an object at rest remains at rest, and an object in motion remains in motion at constant speed and in a straight line unless acted on by an unbalanced force

Question 9

What is Newton’s second law?

Answer 9

Newton’s second law of motion states that a larger force acting on an object causes a larger acceleration, and objects with larger mass require more force to accelerate. It can be represented in the equation F = ma

Question 10

What is Newton’s third law?

Answer 10

Newton’s Third Law of Motion states that for every action, there is an equal and opposite reaction.

Question 11

What is inertial mass?

Answer 11

Inertial mass is a measure of how much an object resists forces acting against its motion.