Measuring Motion And Types Of Forces

Question 1

What are the effects of forces between bodies such as changes in speed, shape or direction

Answer 1

Forces can make an object move change its speed or direction, or deform its shape

Question 2

What does gravitational forces do?

Answer 2

Gravitational forces attract objects with mass

Question 3

What does electrostatic forces do?

Answer 3

They act between electrically charged objects

Question 4

What does nuclear forces do?

Answer 4

It’s a force that acts between the protons and neutrons of atoms

Question 5

What is a vector quantity?

Answer 5

It’s quantity that has both magnitude and direction

Question 6

What is scalar?

Answer 6

It is a physical quantity that completely described by its magnitude alone

Question 7

How do you calculate the resultant force of forces that act along a line

Answer 7

You add the magnitudes of the forces if they act in the same direction, and subtract the smaller forces from the larger force if they act in opposite directions

Question 8

What is friction?

Answer 8

It is a force that opposes motion

Question 9

How do you plot a distance-time graph

Answer 9

You put distance on the y axis and time on the x axis and then the gradient of the graph is the speed

Question 10

What is the equation for acceleration

Answer 10

Acceleration = change in velocity/time taken

Question 11

How to plot a velocity-time graph

Answer 11

You put velocity on the y axis and time on the x axis and the gradient is the acceleration.