Table of Contents
- 1 What causes objects to move?
- 2 What happens when you push the ball?
- 3 What stops an object from moving?
- 4 What is the force required to stop a moving object?
- 5 What are 2 examples of balanced forces?
- 6 Which force can stop a moving object?
- 7 How does a ball move in a moving cart?
- 8 Why do the balls of a car push each other?
What causes objects to move?
When a force pushes or pulls the object, the object will move in the direction of the force. Force can make things move, change shape or change their speed. Some forces are direct and happen when two things touch (like a foot kicking a ball) or over a distance (such as a magnet or gravity).
What happens when you push the ball?
Answer: In flight, the ball rotates about the center of gravity. Newton’s laws of motion describe the translation of the center of gravity. As the ball moves through the air, the air resists the motion of the ball and the resistance force is called drag.
What force produces a force that pulls objects toward each other?
The answer is gravity: an invisible force that pulls objects toward each other. Earth’s gravity is what keeps you on the ground and what makes things fall. Anything that has mass also has gravity.
What happens to the speed of an object when applied force acts on it in the direction of its motion?
If the force applied on the object is in the direction of its motion, the speed of the object increases. If the force is applied in the direction opposite to the direction of motion, then it results in a decrease in the speed of the object.
What stops an object from moving?
The force stopping the object’s motion might be an obvious one – the ground! Friction is a force that slows or stops motion. Friction is the resistance to motion created by two objects rubbing against each other (the sled and the snow, for instance). Even air causes friction.
What is the force required to stop a moving object?
Explanation: an external force is required to stop a moving object because the external force creates a sort of friction or a blockage for the moving object helping it to stop.
What two forces act to slow down a rolling ball on the grass?
The moment the ball leaves the foot, it stops accelerating, and from this point forward only two forces are exerted upon it: the friction with the air, which slows the ball’s motion, and gravity, which pulls it down.
Why do objects eventually stop moving?
Galileo reasoned that moving objects eventually stop because of a force called friction. In experiments using a pair of inclined planes facing each other, Galileo observed that a ball would roll down one plane and up the opposite plane to approximately the same height.
What are 2 examples of balanced forces?
Here are some examples of situations involving balanced forces.
- Hanging objects. The forces on this hanging crate are equal in size but act in opposite directions.
- Floating in water. Objects float in water when their weight is balanced by the upthrust from the water.
- Standing on the ground.
Which force can stop a moving object?
Friction is a force that slows or stops motion. Friction is the resistance to motion created by two objects rubbing against each other (the sled and the snow, for instance). Even air causes friction.
What are examples of push and pull?
Push and pull are the forces that are used to put an object into motion….Examples
- Thumb Pins.
- Opening and Closing a Door.
- Pushing a Car.
- Pulling a Cart.
- Inserting and Removing a Plug.
- Water Dispensers.
- Pulling Curtains and Blinds.
What causes the ball to move up or down?
When the ball reaches the point marked with the red arrow, it starts moving up, therefore its vertical speed is not 0 anymore. Its vertical speed has changed = there was vertical acceleration, so there had to be a non-zero net force in the vertical direction that acted on the ball, right?
How does a ball move in a moving cart?
It isn’t fired straight up, but rather straight up with respect to the moving cart. This means the ball moves at the same horizontal velocity as the cart. With no forces acting on the ball in the horizontal direction, it should move at a constant speed in the y-direction.
Why do the balls of a car push each other?
During the collision, the balls push each other just like the colliding cars push each other, and the pushes will change the motions of both balls. The size of the push plays a role in its impact as well. This influence is studied in the introductory lesson on Push and Pull.
When does the force of the ball increase?
Once you reach the curve, the normal force increases and the ball is accelerated upwards.