Newtons 1st laws
Newtons 2nd laws
Newtons 3rd laws
100
If there is no force on the marker, then what will the marker do?
Remain still.
100
Which mass is harder to move?
a. 40kg
b. 400kg
c.4000kg
c. 4000kg
100
For every action, there is an equal and _____ reaction.
opposite
200
what does an object need to act upon it to stop if its in motion?
A net force.
200
In the formula for (F) force, F=mxa what unit is square?
a. F
b. mass
c. acceleration
c. acceleration
a=m/s^2
200
True or False? Forces do nlot occur in pairs?
False
300
If a screwdriver is knocked out of an astronauts hand in space, what happens to the screwdriver with no force?
It keeps going forever.
300
The force of 10N would have the greatest effect on which object?
a. a golf ball
b. a truck
a. a golf ball
300
Two cars, one of mass 500kg and one of mass 250kg, collide head on. The car with more mass experiences a ________ force and a ________ acceleration with respect to the smaller car.
a. equal.....smaller
b. larger.....larger
c. larger.....smaller
d. equal......larger
a. equal......smaller
400
An object at rest ______ at rest.
stays
400
If a rock of 40kg is pushed 2 m/s^2, what force is needed?
a. 8N
b. 80N
c. 800N
b. 80N
400
Dave is riding his skateboard and pushes off the ground with his foot. This causes him to accelerate at a rate of 4 m/s^2. Dave weighs 589N. How strong was his push off the ground?
a. 64N
b. 589N
c. 240N
d. 147N
C. 240N
500
An object acted up by an ______ force changes speed and direction.
unbalanced
500
If a force of 200N is applied to an object of 10kg, what is the acceleration?
a. 2 m/s^2
b. 20 m/s^2
c. 200 m/s^2
d. 2000 m/s^2
b. 20 m/s^2
500
What happens according to Newton if you let an untied balloon go?
Air will rush out of the balloon forcing the balloon to move through the air in the opposite direction, but equal in force.