Newton's 1st Law
Objects in motion tend to stay in motion. Objects at rest tend to ...
Stay at rest.
An object accelerates to the right. The net force acting on it must point in which direction?
To the right
A volleyball player spikes a ball with a 100 N force forward. What is the amount and direction of the force she feels on her hand?
What is 100 N, backward
When two forces are equal magnitude and in opposite directions, they are ..
Balanced
It is only considered work if the object's motion is in the same direction as the _________.
Force
Inertia is directly proportional to what physical property?
What is mass
The amount of force required to accelerate a 200 kg object at 12 m/s/s is ...
What is 2400 Newtons
In order to be equal and opposite, _______ always come in pairs.
Forces
When the Net Force on an object is NOT zero, it is ...
Unbalanced
What is the formula for work?
W = F x D
Which of these is an example of Newton's 1st Law?
A. When you swing a baseball bat harder, the ball goes farther
B. If you do not wear a seatbelt and your car crashes, you would continue in your forward motion through the windshield
C. When you take a step, you push backward in order to go forward
B
20 kg
When you sit on a chair, gravity pulls you downward. This force keeps you from going through the chair.
What is the Normal force
When the Net Force is not zero, the object will ..
A. Move at a constant speed in the direction of the net force
B. Not move
C. Accelerate in the direction of the net force
C. Accelerate
How much work was done if you applied 10 N of force to an object to move it 3 meters? (Units have to be correct for credit)
30 Joules (J)
A football was kicked off the ground. Which law says that if friction didn't exist, it would stay in motion until another force acts on it?
What is Newton's 1st Law?
A clown throws a baseball (0.5kg) at an acrobat with 10 N of force. At the same time, the acrobat throws an apple pie (1kg) at the clown with 10 N of force. Which object moves faster?
What is the baseball
Which of these is an example of 3rd law:
A. A heavy object taking more force to move
B. Pushing backwards with your oar to move forwards while rowing a boat
C. A pingpong ball accelerates faster than a bowling ball with the same amount of force
B. Pushing backwards with your oar to move forwards while rowing a boat
When an unbalanced force causes an object to accelerate, it will:
A. Continue to accelerate as long as the force is applied
B. Stay at a constant speed
A. Continue to accelerate as long as the force is applied
How much force would need to be applied to do 100 Joules of work over a distance of 20 meters? (Units have to be correct)
5 Newtons (N)
A magician pulls a tablecloth off of a table containing a 5 kg bird cage, a 3 kg top hat, and a 200 g magic wand. Which item is most likely to stay on the table?
What is the 5 kg bird cage.
How fast would a 40 kg bike accelerate if you apply a steady force of 8 Newtons on the pedals? (Units have to be correct!)
0.2 m/s2
Which of these is an example of 3rd Law:
A. Stepping off a boat and the boat moves backwards
B. If a 5 kg mass has 5 newtons of force, it will accelerate at 1 m/s2
C. A cotton ball has less resistance to motion than a baseball
A. Stepping off a boat and it moves backwards.
When ur watching the bee movie and your dad walks in on your stepsister trying to steal your collection of limited edition mid-12th century siege weaponry and your stepmom takes the kids
Graph A
How far did you push something if you applied 50 N of force and did 150 Joules of Work?
3 Meters