Worksheets4.1 Forces & Motion ม5
Total questions: 20
Worksheet time: 11mins
What is Newton's First Law
F=ma
Every action has an equal and opposite reaction
Friction
An object at rest stays at rest, an object in motion stays in motion.
An evil ewok threw a rock with a force of 24.6N and an acceleration of 6m/s2 at an innocent stormtrooper. What was the rocks mass?
4Kg
41kg
4.1kg
46kg
Your car has a mass of 2500 kg and a force of 5000 N. How fast will it accelerate?
20 m/s2
2 m/s2
0.5 m/s2
120 N
What happens when unbalanced forces act on an object at rest?
the object remains at rest
the object begins moving in an unpredictable direction
the object begins moving in the direction of the net force
the object begins moving opposite to the direction of net force
A 20 kg bike accelerates at 10 m/s2. What was the force?
25 Newtons
20 Newtons
200 Newtons
10 Newtons
What is the net force?
40 N left
400 N right
0 N Balanced
40 N right
Jenny applies a 60 N force to a 20 Kg cart, what is the acceleration of the cart if friction can be neglected?
1200 m/s/s
0.33 m/s/s
20 m/s/s
3 m/s/s
A force of 200 N is exerted on an object of mass 40 kg that is located on a sheet of perfectly smooth ice.Calculate the acceleration of the object.
5 m/s2
8000 m/s2
0.2 m/s2
1.32 m/s2
Newton's 1st Law is also called the Law of ...
Friction
Inertia
Unbalanced forces
Newtons
Because of inertia, a moving object will keep ________ unless acted on by an unbalanced force.
at rest
moving
in one spot
inertia
