Table of Contents
- 1 What makes an object easier to move?
- 2 What are the different ways of moving the different objects?
- 3 Why is it easier to move a box already in motion than to get it started?
- 4 Do all objects fall at the same speed?
- 5 What causes some objects to move farther than others?
- 6 What makes an object speed up or slow down?
What makes an object easier to move?
Moving objects carry on moving because they have momentum. The momentum of a moving object increases with its mass and its speed. The heavier the object and the faster it is moving, the greater its momentum and the harder it is to stop.
What are the different ways of moving the different objects?
2.2. 2.1. 2 Demonstrate that objects move in a variety of ways, including a straight line, a curve, a circle, back and forth, and at different speeds. 2.2 The motion of an object can be changed by push or pull forces.
Why do objects of different mass fall at the same speed in a vacuum?
In order to pull them at the same speed you need to pull the heavier box with twice as much force. Gravity pulling objects to the ground is like you pulling boxes across a room. Gravity needs to exert more force on heavier objects to make them fall as quickly as lighter objects.
Why do object of different mass fall at the same acceleration?
The closer one has a greater mass, but the forces from the fans are the same. In the end, the less massive one wins. Since both the acceleration AND the gravitational force depend on the mass, the mass cancels. Objects fall with the same acceleration—if and only if the gravitational force is the only force.
Why is it easier to move a box already in motion than to get it started?
Answer: The force required to keep the object moving with the same speed is a measure of sliding friction. So, the sliding friction is slightly smaller than the static friction. Hence, it is somewhat easier to move the box already in motion than to get it started.
Do all objects fall at the same speed?
As such, all objects free fall at the same rate regardless of their mass. Because the 9.8 N/kg gravitational field at Earth’s surface causes a 9.8 m/s/s acceleration of any object placed there, we often call this ratio the acceleration of gravity.
Why dont heavy objects fall faster than light objects?
Answer: All objects fall on ground with constant acceleration, called acceleration due to gravity (in the absence of air resistances). It is constant and does not depend upon the mass of an object. Hence, heavy objects do not fall faster than light objects.
Why are objects slower in water?
When objects move through a fluid, such as air or water, the fluid exerts a frictional force on the moving object. The frictional force from a fluid is called a drag force. Friction drag force causes objects to slow down as they move through a fluid, such as air or water.
What causes some objects to move farther than others?
b) what causes some objects to move farther than others. Key vocabulary words: Force: any cause that makes on object move or stop. Mass: weight of an object. Friction: a force that happens when one object rubs against another object.
What makes an object speed up or slow down?
LAW 2 – Forces make things speed up (or accelerate). When a force pushes or pulls the object, the object will move in the direction of the force. The bigger the force, and the lighter the object, the greater the acceleration. It can also make something slow down, speed up or change direction.
Can a object move faster than the speed of light?
One commonly-known fact in physics is that you cannot move faster than the speed of light. While that’s basically true, it’s also an over-simplification. Under the theory of relativity, there are actually three ways that objects can move: At the speed of light. Slower than the speed of light.
What makes an object move in one direction?
A force is a push or pull that can cause an object to start moving, stop, or change speed or direction. 3. The greater the force, the greater the change in motion. For example, two people pushing a wagon can get it up to a certain speed faster than one person alone.