Vocabulary
What is the unit of measurement for mass
What is....kg
What is Newton's 1st Law of Motion?
What is.... An object in motion stays in motion and an object at rest stays at rest.
What is Newton's 2nd Law of Motion?
What is.....Force=Mass X Acceleration
What is the key difference between the 1st and 3rd laws of motion?
What is....the forces act upon the SAME object in the 1st and in the 3rd the forces act on different objects
A 120N force is exerted on a 8kg office table in order to move it across the room. What is the acceleration of the office table?
What is....15m/s2
The overall force of an object is referred to as
What is.... Net Force
What kind of force has to act on an object for a change in motion to occur?
What is....Unbalanced Forces
A force of 10 N is applied to a box with a mass of 2kg. What is the Acceleration of the box?
What is.... 5m/s2
Is the force exerted by the first object the action or the reaction force?
What is....The Action Force
A truck with a mass of 15,000kg accelerates at 6 m/s2. What is the net force acting on the truck?
What is....90,000N
What is the unit of measurement for acceleration
What is.... m/s2
What is the property that helps objects resist a change in motion?
What is....Inertia
What does the acceleration of an object depend on?
What is.... The objects mass.
All forces occur is groups of how many?
What is....Two
What is the acceleration of a 50kg Tomato that is being pushed with the force of 500N
What is.... 10 m/s2
The reaction force that supports a body resting on a surface
What is....Normal
Which of the following requires the greatest force to be moved and WHY?
30kg, 16kg, 52kg, and 7kg
What is....52kg because the higher the mass the more force needs to be applied
What does the net force change?
What is....the velocity.
When rockets launch they use thrusters which apply a force against the ground.
This force then pushes the rocket up into space. What law does this demonstrate?
Newton's 3rd Law
Ms.Wilcox is throwing a table with a force of 250N. The acceleration rate is 5 m/s2. What is the mass of the table?
What is....50kg
The force that opposes motion between two surfaces
What is.... Friction
The law requires individuals to wear their seatbelt when driving.
When making a sudden stop the seatbelt tightens holding you in place.
How does Newton's 1st Law of Motion apply when a person is NOT wearing their seatbelt?
What is.....due to inertia an object in motion will stay in motion until an outside force acts on it
A student pushed a 12 kg cart with a force of 14N to the East. Friction causes a force of 6N to act on the cart to the West. What is the Net Force of the cart? AND What is its Acceleration?
What is....Net Force of 8N. Acceleration is 0.6ms2
If a 6kg bowling ball is rolled down a hill with a velocity of 3.5 m/s, What is the balls momentum?
What is.... 21kg.m/s
A pumpkin weighs 3,599kg. The pumpkin is thrown at a rate of 5 m/s2. What is the force?
What is....17,995N